new readme

Mostra a versao (via getVersion/package_info_plus) ao lado de um badge
alpha e um aviso de que o app ainda esta em desenvolvimento.

README.md

@@ -5,133 +5,280 @@ SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
 SPDX-License-Identifier: AGPL-3.0-or-later
 -->
 
-[TatuChat](https://tatuchat.weltonmoura.com.br/home/) is an open source, nonprofit and cute [[matrix](https://matrix.org)] client written in [Flutter](https://flutter.dev). The goal of the app is to create an easy to use instant messenger which is open source and accessible for everyone.
+# TatuChat
 
-### Links:
+<p align="center">
+  <img src="https://tatuchat.weltonmoura.com.br/home/assets/logo.png" height="180" alt="TatuChat">
+</p>
 
-- 🌐 [[Weblate] Translate TatuChat into your language](https://hosted.weblate.org/projects/fluffychat/)
+<p align="center">
-- 🌍 [[m] Join the community](https://matrix.to/#/#fluffy-space:matrix.org)
+  Cliente de mensagens instantâneas <strong>open source</strong>, <strong>sem fins lucrativos</strong> e
-- 📰 [[Mastodon] Get updates on social media](https://troet.cafe/@krille)
+  multiplataforma, construído sobre o protocolo
-- 💝 [[Liberapay] Support TatuChat development](https://de.liberapay.com/KrilleChritzelius)
+  <a href="https://matrix.org">Matrix</a> com <a href="https://flutter.dev">Flutter</a>.
+  TatuChat é um <em>fork</em> do acclaimed
+  <a href="https://fluffy.chat">FluffyChat</a>, com foco em privacidade, simplicidade e
+código aberto.
+</p>
 
-<a href='https://ko-fi.com/krille' target='_blank'><img height='36' style='border:0px;height:36px;' src='https://storage.ko-fi.com/cdn/kofi5.png?v=3' border='0' alt='Buy Me a Coffee at ko-fi.com' /></a>
+> 🌐 **Site, downloads e novidades:** <https://tatuchat.weltonmoura.com.br/home/>
 
-### Screenshots:
+> ⚠️ **Status do projeto: alfa.** O aplicativo está em desenvolvimento ativo e ainda pode
+> apresentar erros, perder dados ou mudar de comportamento entre versões. Use com cuidado e
+> reporte problemas para ajudar a tornar o TatuChat mais estável.
 
-<img src="https://tatuchat.weltonmoura.com.br/home/assets/logo.png" height="300">
+## O que é o TatuChat
 
-# Features
+Um mensageiro federado e descentralizado: nenhuma empresa no meio, nenhum servidor único. Você
+escolhe o *homeserver* que quiser (ou usa um dos recomendados), conversa com quem está em outros
+servidores e continua sendo dono dos seus dados. Tudo com criptografia ponta a ponta
+(Olm/Megolm via [Vodozemac](https://github.com/matrix-org/vodozemac) em WebAssembly).
 
-- 📩 Send all kinds of messages, images and files
+- 🔐 Criptografia ponta a ponta, com verificação por emoji e *cross-signing*
-- 🤙 Video calls with Matrix RTC
+- 💾 Backup de conversas criptografado
-- 🎙️ Voice messages
+- 📩 Texto, imagens, áudio, vídeo, arquivos, stickers, emotes e localização
-- 📍 Location sharing
+- 🤙 Videochamadas pelo Matrix RTC (LiveKit)
-- 🔔 Push notifications
+- 🎙️ Mensagens de voz
-- 💬 Unlimited private and public group chats
+- 🔔 Notificações push, com ou sem Google (UnifiedPush / ntfy)
-- 📣 Public channels with thousands of participants
+- 🌌 Espaços para navegar hierarquias inteiras de salas
-- 🛠️ Feature rich group moderation including all matrix features
+- 🎨 Design Material You, com cores dinâmicas do Android
-- 🔍 Discover and join public groups
-- 🎨 Material You design
-- 😄 Custom emotes and stickers
-- 🌌 Spaces
-- 🔐 End to end encryption
-- 🔒 Encrypted chat backup
-- 😀 Emoji verification & cross signing
-... and much more.
 
+## 🚀 Inovações do TatuChat
 
-# Installation
+O TatuChat reescreveu a forma de navegar e de consumir conteúdo dentro do Matrix. As seções
+abaixo descrevem os módulos desenvolvidos sobre o FluffyChat.
 
-Please visit the website for installation instructions:
+### Abas e barra lateral
 
-- https://tatuchat.weltonmoura.com.br/home/
+O app não usa mais a *navigation rail* do FluffyChat. A navegação principal virou uma
+**barra lateral** (desktop e tablet) com as entradas *Criar grupo*, *Definir status*,
+*Convidar contato*, *Arquivo*, **Apps** e *Configurações*, além do seletor de contas.
 
-# Configuration and Mobile Device Management (MDM)
+A tela inicial foi dividida em **quatro abas**, com barra superior em telas largas e barra
+inferior em telas compactas:
 
-TatuChat supports configuration via MDM on Android&iOS (since v2.10.0) and via a config.json file on web. You can see the populated configuration for MDM on Android in this file under `/android/app/src/main/res/xml/app_restrictions.xml`.
+| Aba | O que mostra |
-An example configuration can be found in the `config.sample.json` file.
+| --- | --- |
+| **Conversas** | Apenas conversas normais |
+| **Canais** | Apenas canais |
+| **Espaços** | Os espaços em que você entrou, como tela inicial |
+| **Murais** | Apenas murais |
 
-# How to build
+Canais e murais **não aparecem** na lista de conversas, e vice-versa: cada tipo tem sua própria
+aba, com busca própria — e os murais mostram ainda o número de inscritos de cada um.
 
-1. To build TatuChat you need [Flutter](https://flutter.dev) and [Rust](https://www.rust-lang.org/tools/install)
+### 📣 Canais
 
-2. Clone the repo:
+Um canal é uma sala pública de distribuição, no estilo de um feed, não de um chat. O tipo é
-```
+gravado no estado compartilhado da sala (`tatuchat.room_type = "canal"`), com uma tag pessoal
+(`tatuchat_canal`) para identificação local.
+
+A sala usa a página de chat normal, mas em **modo feed**:
+
+- 🗞️ Publicações viram **cartões de largura total**, em vez de balões
+- ✍️ O nome do autor aparece **sempre**, inclusive nas suas próprias publicações, para que o
+  feed nunca pareça anônimo
+- ⬅️ Tudo alinhado à esquerda, com balões totalmente arredondados
+- 🖼️ Imagens ocupam a largura total, mantendo a proporção original
+- 🔐 **Somente administradores publicam no nível principal**; dentro das threads, qualquer
+  participante comenta
+- 💬 Cada publicação abre uma **thread de comentários**, com reações, respostas, edição,
+  exclusão e denúncia
+
+### 🖼️ Murais
+
+Um mural é uma página dedicada — não uma variante da timeline. O tipo é gravado em
+`tatuchat.room_type = "mural"` (tag pessoal `tatuchat_mural`), e abrir o mural **nunca** mostra
+a lista de mensagens: mostra um **grid visual**.
+
+- 🟦 Grade responsiva de 3 colunas alimentada apenas por **imagens, vídeos e stickers**
+- 🎨 Cabeçalho com capa, avatar, nome, descrição, autor e número de inscritos
+- 👆 **Toque simples** abre o visualizador do post, com painel de comentários e campo de
+  resposta
+- 🤏 **Toque longo** abre a imagem em tela cheia, com *pinch-to-zoom* e deslize entre as mídias
+  do mural
+- 💬 Comentários são **threads Matrix reais**, com árvore aninhada, reações, resposta,
+  exclusão do próprio comentário e denúncia
+- 🧹 A timeline carrega em blocos conforme você desce, para não travar em murais grandes
+
+### 🌌 Espaços
+
+Matrix costuma tratar espaços como um recurso de segunda classe. No TatuChat eles viraram uma
+**tela inicial** completa:
+
+- 🧭 A aba **Espaços** é a porta de entrada: explorer a hierarquia inteira de uma conta sem sair
+  do app
+- 🔎 Busca e filtro dentro do espaço, com capa do espaço e destaque da sala ativa
+- ➕ Ingresso rápido em salas filhas públicas, direto da hierarquia
+- 🛠️ Edição das salas filhas a partir do próprio explorador
+- ↔️ A sala ativa é carregada na coluna lateral e preservada entre navegações
+
+### 🧩 Mini Apps
+
+O TatuChat é **extensível pela comunidade**: qualquer pessoa pode escrever um mini app e
+instalá-lo no próprio app, sem loja, sem build e sem publishing.
+
+Um mini app é **um único arquivo `.html`**, executado em um *web view* isolado:
+
+- 📥 Instalação **por arquivo** ou **por URL**
+- 🔐 Cada app tem seu próprio armazenamento chave-valor, persistido no *account data* do Matrix
+  (ou seja, o app sincroniza entre os seus dispositivos)
+- 🎨 A ponte expõe a paleta e o brilho do tema atual, para o app acompanhar o Material You
+- 👤 A ponte expõe o perfil do usuário (id, nome, avatar e homeserver)
+- 📦 Dois mini apps já vêm embutidos: **`tasks`** (lista de tarefas) e **`accountdata`**
+  (editor de *account data*)
+
+As ações disponíveis na ponte são:
+
+| Ação | O que faz |
+| --- | --- |
+| `io.tatuchat.storage.load` | Lê o armazenamento do app |
+| `io.tatuchat.storage.save` | Sobrescreve o armazenamento do app |
+| `io.tatuchat.identity.get` | Perfil do usuário + avatar como data URI |
+| `io.tatuchat.theme.get` | Paleta e brilho do tema em hex CSS |
+| `io.tatuchat.accountdata.list` | Lista todas as chaves de *account data* |
+| `io.tatuchat.accountdata.get` | Lê uma chave de *account data* |
+| `io.tatuchat.accountdata.set` | Escreve uma chave de *account data* |
+
+**📖 Documentação completa:** [`docs/miniapps.md`](docs/miniapps.md) — manifesto em `<meta>`,
+protocolo da ponte, exemplo de HTML e limitações.
+
+> 🔐 **Segurança — leia antes de instalar apps de terceiros.** As ações de `accountdata.*` não
+> são restritas por app: um mini app pode ler e escrever qualquer chave de *account data* da
+> conta, incluindo as chaves de outros mini apps. Não existe modelo de permissões nem pedido de
+> consentimento. Instale apenas apps cujo código você auditou. O app **não** expõe salas,
+> mensagens, arquivos nem envio de mensagens pela ponte.
+
+### Outros detalhes
+
+- 🎨 **Identidade visual própria:** cor primária esmeralda `#00D084`, paleta de sementes
+  customizada, ícone, splash e ícone de notificação próprios
+- ⏱️ **Status personalizado aparece na hora:** a atualização de status é aplicada no cache local
+  imediatamente, sem esperar o *sync* do homeserver
+- 🖼️ **Papel de parede e tema sincronizados:** via *account data* da conta Matrix, o tema segue
+  entre dispositivos; há também a opção de suavizar a cor primária
+- 🔗 Deep links próprios (`im.tatuchat://chat/`) e convites com `client=im.tatuchat`
+
+## 📲 Instalação
+
+Downloads para Android, iOS, Linux, Windows, macOS e Web (PWA), além de notas de versão:
+
+- <https://tatuchat.weltonmoura.com.br/home/>
+
+## ⚙️ Configuração e MDM
+
+O TatuChat aceita configuração gerenciada em Android e iOS (via MDM) e por um arquivo
+`config.json` na versão web.
+
+- **Android:** as restrições declaradas ficam em
+  `android/app/src/main/res/xml/app_restrictions.xml`, com as chaves `defaultHomeserver`,
+  `presetHomeserver` e `welcomeText`. O restante das chaves é lido de `ManagedConfigurations`.
+- **Web:** sirva um `config.json` no mesmo caminho do app. O exemplo completo está em
+  [`config.sample.json`](config.sample.json).
+
+⚠️ Passe **somente os valores que você realmente precisa alterar**. Todas as chaves são
+opcionais; por exemplo, para trocar o homeserver padrão, altere apenas `defaultHomeserver`.
+
+## 🛠️ Como compilar
+
+1. Para compilar o TatuChat você precisa do [Flutter](https://flutter.dev) (3.47.3, Dart
+   `>=3.11.1 <4.0.0`); para a versão web, também do [Rust](https://www.rust-lang.org/tools/install),
+   usado para compilar o Vodozemac.
+
+2. Clone o repositório:
+   ```bash
    git clone https://gitea.weltonmoura.com.br/welton/tatuchat.git
    cd tatuchat
    ```
-3. Choose your target platform below and enable support for it.
-3.1 If you want, enable Googles Firebase Cloud Messaging:
 
-`./scripts/add-firebase-messaging.sh`
+3. Escolha a plataforma alvo abaixo e habilite o suporte a ela.
 
-4. Debug with: `flutter run`
+4. Opcionalmente, habilite o Google Firebase Cloud Messaging:
+   ```bash
+   ./scripts/add-firebase-messaging.sh
+   ```
+
+5. Debug com `flutter run`.
 
 ### Android
 
-* Build with: `flutter build apk`
+```bash
+flutter build apk --release
+# ou, por arquitetura (APKs bem menores):
+flutter build apk --release --split-per-abi
+```
+
+Para assinar, preencha `android/key.properties` (já ignorado pelo Git) com `storeFile`,
+`keyAlias`, `storePassword` e `keyPassword`; o script `prepare-android-release.sh` faz isso a
+partir do segredo `$FDROID_KEY` em CI.
 
 ### iOS / iPadOS
 
-* Have a Mac with Xcode installed, and set up for Xcode-managed app signing
+* Um Mac com Xcode instalado, configurado para o *app signing* gerenciado pelo Xcode
-* If you want automatic app installation to connected devices, make sure you have Apple Configurator installed, with the Automation Tools (`cfgutil`) enabled
+* Se quiser instalar automaticamente nos dispositivos conectados, tenha o Apple Configurator com
-* Set a few environment variables
+  as ferramentas de automação (`cfgutil`) habilitadas
-    * FLUFFYCHAT_NEW_TEAM: the Apple Developer team that your certificates should live under
+* Defina algumas variáveis de ambiente:
-    * FLUFFYCHAT_NEW_GROUP: the group you want App IDs and such to live under (ie: com.example.fluffychat)
+  * `FLUFFYCHAT_NEW_TEAM`: o time de Apple Developer que deve emitir os certificados
-    * FLUFFYCHAT_INSTALL_IPA: set to `1` if you want the IPA to be deployed to connected devices after building, otherwise unset
+  * `FLUFFYCHAT_NEW_GROUP`: o grupo onde os App IDs vivem (ex.: `com.example.tatuchat`)
-* Run `./scripts/build-ios.sh`
+  * `FLUFFYCHAT_INSTALL_IPA`: defina como `1` para fazer o *deploy* do IPA nos dispositivos
+    conectados após o build
+* Execute `./scripts/build-ios.sh`
 
 ### Web
 
-* Build with:
 ```bash
-./scripts/prepare-web.sh # To install Vodozemac
+./scripts/prepare-web.sh        # compila o Vodozemac para WebAssembly
 flutter build web --release
 ```
 
-* Optionally configure by serving a `config.json` at the same path as fluffychat.
-  An example can be found at `config.sample.json`. All values there are optional.
-  **Please only the values, you really need**. If you e.g. only want
-  to change the default homeserver, then only modify the `defaultHomeserver` key.
-
 ### Desktop (Linux, Windows, macOS)
 
-* Enable Desktop support in Flutter: https://flutter.dev/desktop
+Habilite o suporte a desktop do Flutter: <https://flutter.dev/desktop>
 
-#### Install custom dependencies (Linux)
+Dependências no Linux:
 
 ```bash
 sudo apt install libjsoncpp1 libsecret-1-dev libsecret-1-0 librhash0 libwebkit2gtk-4.0-dev lld
 ```
 
-* Build with one of these:
 ```bash
 flutter build linux --release
 flutter build windows --release
 flutter build macos --release
 ```
 
-## How to run integration tests
+## 🧪 Testes de integração
 
-You need to have docker installed locally! Run the preparation script before every test run:
+Os testes completos precisam de Docker (Synapse) rodando localmente. Antes de cada execução:
 
-```sh
+```bash
 ./scripts/prepare_integration_test.sh
-```
-
-Then run all tests with:
-
-```sh
 flutter test integration_test/mobile_test.dart
 ```
 
+## 📜 Licença
 
-# Special thanks
+TatuChat é software livre, licença **AGPL-3.0-or-later**. Ele é derivado do FluffyChat, também
+AGPL-3.0-or-later, Copyright de Christian Kußowski e colaboradores. O arquivo `LICENSES/` traz as
+licenças de todas as dependências (REUSE).
 
-* <a href="https://github.com/fabiyamada">Fabiyamada</a> is a graphics designer and has made the tatuchat logo and the banner. Big thanks for her great designs.
+## 🔗 Links
 
-* Also thanks to all translators and testers! With your help, tatuchat is now available in more than 12 languages.
+- 🌐 [Site do TatuChat](https://tatuchat.weltonmoura.com.br/home/)
+- 💻 [Código-fonte](https://gitea.weltonmoura.com.br/welton/tatuchat)
+- 🐞 [Issues e bugs](https://gitea.weltonmoura.com.br/welton/tatuchat/issues)
+- 🧩 [Documentação dos Mini Apps](docs/miniapps.md)
+- 🌍 [[Weblate] Traduza o TatuChat](https://hosted.weblate.org/projects/fluffychat/)
+- 🦊 [Código do FluffyChat, o projeto original](https://github.com/krille-chan/fluffy-chat)
+- 📄 [Política de privacidade](PRIVACY.md) · [Segurança](SECURITY.md) · [Contribuindo](CONTRIBUTING.md) · [Changelog](CHANGELOG.md)
 
-* The Matrix Foundation for making and maintaining the [emoji translations](https://github.com/matrix-org/matrix-spec/blob/main/data-definitions/sas-emoji.json) used for emoji verification, licensed Apache 2.0
+## 🙏 Agradecimentos
 
-* Special thanks to MTRNord, Sorunome and Advocatux.
+* **[Fabiyamada](https://github.com/fabiyamada)** é designer gráfico e criou o logo e o banner do
+  TatuChat. Muito obrigado pelos belos designs.
+* A todos os tradutores e testadores! Com a ajuda de vocês o TatuChat já está disponível em mais
+  de 12 idiomas.
+* À **Matrix Foundation**, por manter e licenciar (Apache 2.0) as
+  [traduções de emoji](https://github.com/matrix-org/matrix-spec/blob/main/data-definitions/sas-emoji.json)
+  usadas na verificação por emoji.
+* A **MTRNord**, **Sorunome** e **Advocatux**.
+* Ao **FluffyChat** e a toda a comunidade Matrix — o TatuChat existe graças a esse trabalho.

android/app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -1,29 +0,0 @@
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-        android:fillColor="#fff"/>
-    <path
-        android:pathData="M18.3,42.8l0.8,-0.8c0.5,-0.8 0.3,-1.5 0,-2a7.6,7.6 0,0 1,-1.3 -5.8c0.5,-2.8 2.8,-5 5.5,-5.8 1.5,-0.5 3,-0.3 4.5,0.3 0.8,0.3 1.5,0 2,-0.5s0.8,-1.3 0.5,-2a7,7 0,0 1,0 -4.5c0.3,-1 0.8,-2 1.5,-2.8 -5.5,-4.5 -13.9,-7.8 -18.4,-6.3 -4.5,1.5 -3.7,21.4 0.9,27.7 1,1.5 2.2,2.2 4,2.5z"
-        android:fillColor="#fff"/>
-    <path
-        android:pathData="M40.2,73.8m-9.3,0a9.3,9.3 0,1 1,18.6 0a9.3,9.3 0,1 1,-18.6 0"
-        android:fillColor="#fff"/>
-    <path
-        android:pathData="M80,73.8a9.3,9.3 0,1 1,-18.6 0c0,-5 18.6,-5.3 18.6,0z"
-        android:fillColor="#fff"/>
-    <path
-        android:pathData="M100.9,73.8m-9.3,0a9.3,9.3 0,1 1,18.6 0a9.3,9.3 0,1 1,-18.6 0"
-        android:fillColor="#fff"/>
-  </group>
-</vector>

lib/config/app_config.dart

@@ -17,7 +17,7 @@ abstract class AppConfig {
   static const String inviteLinkPrefix = 'https://matrix.to/#/';
   static const String deepLinkPrefix = 'im.tatuchat://chat/';
   static const String schemePrefix = 'matrix:';
-  static const String pushNotificationsChannelId = 'tatuchat_push';
+  static const String pushNotificationsChannelId = 'tatuchat_push_v2';
   static const String pushNotificationsAppId = 'chat.fluffy.tatuchat';
   static const double borderRadius = 18.0;
   static const double spaceBorderRadius = 11.0;

lib/config/setting_keys.dart

@@ -59,6 +59,11 @@ enum AppSettings<T> {
   ),
   // colorSchemeSeed stored as ARGB int
   colorSchemeSeedInt<int>('chat.fluffy.color_scheme_seed', 0xFF00D084),
+
+  /// When false the chosen seed color is used verbatim as the theme primary
+  /// color. When true the Material 3 tonal palette is used instead, which
+  /// softens it.
+  softenThemeColor<bool>('chat.fluffy.soften_theme_color', false),
   emojiSuggestionLocale<String>('emoji_suggestion_locale', ''),
   enableSoftLogout<bool>('chat.fluffy.enable_soft_logout', true),
   enableMatrixNativeOIDC<bool>('chat.fluffy.enable_matrix_native_oidc', true),

lib/config/tatu_palette.dart

@@ -97,7 +97,14 @@ abstract class TatuPalette {
   /// When a [seed] is provided (e.g. a color chosen by the user or a system
   /// dynamic color), its tonal values are used for the primary family while
   /// the brand surfaces, accent and error colors are preserved.
-  static ColorScheme scheme(Brightness brightness, [Color? seed]) {
+  ///
+  /// Unless [softenPrimary] is set, the seed is used verbatim as the primary
+  /// color, because the Material 3 tonal palette noticeably dulls it down.
+  static ColorScheme scheme(
+    Brightness brightness, [
+    Color? seed,
+    bool softenPrimary = false,
+  ]) {
     final isDark = brightness == Brightness.dark;
     final p = isDark ? _dark : _light;
     final base = ColorScheme.fromSeed(
@@ -106,12 +113,17 @@ abstract class TatuPalette {
       dynamicSchemeVariant: DynamicSchemeVariant.rainbow,
     );
     final useBrandPrimary = seed == null;
+    // Only force the exact color when the caller did not ask for the soft
+    // Material 3 palette. `null` here means "keep the value from [base]".
+    final exactPrimary = !useBrandPrimary && !softenPrimary ? seed : null;
     return base.copyWith(
-      primary: useBrandPrimary ? p.primary : null,
+      primary: useBrandPrimary ? p.primary : exactPrimary,
-      onPrimary: useBrandPrimary ? p.onPrimary : null,
+      onPrimary: useBrandPrimary
+          ? p.onPrimary
+          : (exactPrimary == null ? null : _contrastOn(exactPrimary)),
       primaryContainer: useBrandPrimary ? p.primaryContainer : null,
       onPrimaryContainer: useBrandPrimary ? p.onPrimaryContainer : null,
-      surfaceTint: useBrandPrimary ? p.primary : null,
+      surfaceTint: useBrandPrimary ? p.primary : exactPrimary,
       secondary: p.secondary,
       onSecondary: p.onSecondary,
       secondaryContainer: p.secondaryContainer,
@@ -141,6 +153,12 @@ abstract class TatuPalette {
       surfaceBright: p.surfaceBright,
     );
   }
+
+  /// Picks the readable foreground for an arbitrary background color.
+  static Color _contrastOn(Color background) =>
+      ThemeData.estimateBrightnessForColor(background) == Brightness.dark
+      ? Colors.white
+      : Colors.black;
 }
 
 class _Scheme {

lib/config/themes.dart

@@ -47,8 +47,9 @@ abstract class FluffyThemes {
     BuildContext context,
     Brightness brightness, [
     Color? seed,
+    bool softenPrimary = false,
   ]) {
-    final colorScheme = TatuPalette.scheme(brightness, seed);
+    final colorScheme = TatuPalette.scheme(brightness, seed, softenPrimary);
     final isColumnMode = FluffyThemes.isColumnMode(context);
     final dividerColor = brightness == Brightness.dark
         ? colorScheme.surfaceContainerHighest

lib/l10n/intl_en.arb

@@ -3029,5 +3029,15 @@
   "@uninstallAppConfirm": {
     "type": "String",
     "placeholders": {}
+  },
+  "softenThemeColor": "Soften theme color",
+  "@softenThemeColor": {
+    "type": "String",
+    "placeholders": {}
+  },
+  "softenThemeColorSubtitle": "Use a soft Material 3 palette derived from the selected color instead of the exact color.",
+  "@softenThemeColorSubtitle": {
+    "type": "String",
+    "placeholders": {}
   }
 }

lib/l10n/intl_pt.arb

@@ -2043,5 +2043,7 @@
     "type": "String",
     "placeholders": {}
   },
-  "areYouSureDeletePost": "Eliminar"
+  "areYouSureDeletePost": "Eliminar",
+  "softenThemeColor": "Suavizar cor do tema",
+  "softenThemeColorSubtitle": "Usa uma paleta suave do Material 3 derivada da cor escolhida em vez da cor exata."
 }

lib/pages/chat_list/chat_list.dart

@@ -525,7 +525,7 @@ class ChatListController extends State<ChatList>
         )
         .toList();
 
-    var action = await showModalActionPopup<ChatContextAction>(
+    final action = await showModalActionPopup<ChatContextAction>(
       context: posContext,
       cancelLabel: l10n.cancel,
       actions: [
@@ -564,36 +564,6 @@ class ChatListController extends State<ChatList>
                 room.isFavourite ? Icons.push_pin : Icons.push_pin_outlined,
               ),
             ),
-        ],
-        AdaptiveModalAction(
-          value: ChatContextAction.leave,
-          label: room.membership == Membership.invite
-              ? l10n.delete
-              : l10n.leave,
-          icon: const Icon(Icons.delete_outlined),
-          isDestructive: true,
-        ),
-        if (room.membership == Membership.invite)
-          AdaptiveModalAction(
-            value: ChatContextAction.block,
-            label: l10n.block,
-            icon: const Icon(Icons.block_outlined),
-            isDestructive: true,
-          ),
-        if (room.membership == Membership.join)
-          AdaptiveModalAction(
-            value: ChatContextAction.showMore,
-            label: l10n.more,
-            icon: Icon(Icons.adaptive.more_outlined),
-          ),
-      ],
-    );
-    if (!posContext.mounted || !mounted) return;
-    if (action == ChatContextAction.showMore) {
-      action = await showModalActionPopup<ChatContextAction>(
-        context: posContext,
-        cancelLabel: l10n.cancel,
-        actions: [
           if (!room.isFavourite)
             AdaptiveModalAction(
               value: ChatContextAction.lowPriority,
@@ -625,8 +595,24 @@ class ChatListController extends State<ChatList>
               icon: const Icon(Icons.group_work_outlined),
             ),
         ],
+        AdaptiveModalAction(
+          value: ChatContextAction.leave,
+          label: room.membership == Membership.invite
+              ? l10n.delete
+              : l10n.leave,
+          icon: const Icon(Icons.delete_outlined),
+          isDestructive: true,
+        ),
+        if (room.membership == Membership.invite)
+          AdaptiveModalAction(
+            value: ChatContextAction.block,
+            label: l10n.block,
+            icon: const Icon(Icons.block_outlined),
+            isDestructive: true,
+          ),
+      ],
     );
-    }
+    if (!posContext.mounted || !mounted) return;
 
     if (action == null) return;
     if (!mounted) return;
@@ -753,8 +739,6 @@ class ChatListController extends State<ChatList>
           future: () => room.removeTag(activeTag!),
         );
         return;
-      case ChatContextAction.showMore:
-        throw ('Should not be handled!');
     }
   }
 
@@ -1021,5 +1005,4 @@ enum ChatContextAction {
   leave,
   addToSpace,
   block,
-  showMore,
 }

lib/pages/image_viewer/image_viewer.dart

@@ -33,6 +33,57 @@ class ImageViewer extends StatefulWidget {
 class ImageViewerController extends State<ImageViewer> {
   final FocusNode focusNode = FocusNode();
 
+  /// One [TransformationController] per image, so the zoom of one page never
+  /// leaks into its neighbours.
+  final Map<String, TransformationController> _transformations = {};
+
+  int _pointerCount = 0;
+  bool _isZoomed = false;
+
+  /// True while an image is zoomed in, so panning moves the image instead of
+  /// switching to the next one.
+  bool get isZoomed => _isZoomed;
+
+  /// The [PageView] must not compete for the gesture while pinching or while
+  /// an image is zoomed, otherwise the swipe recognizer wins the gesture arena
+  /// and pinch-to-zoom never happens.
+  bool get canSwipeToNextImage => _pointerCount < 2 && !_isZoomed;
+
+  TransformationController transformationControllerFor(Event event) =>
+      _transformations.putIfAbsent(event.eventId, () {
+        final controller = TransformationController();
+        controller.addListener(_onTransformChanged);
+        return controller;
+      });
+
+  void onPointerDown() {
+    if (!mounted) return;
+    setState(() => _pointerCount++);
+  }
+
+  void onPointerUp() {
+    if (!mounted || _pointerCount == 0) return;
+    setState(() => _pointerCount--);
+  }
+
+  void _onTransformChanged() {
+    if (!mounted) return;
+    final zoomed = _transformations.values.any(
+      (controller) => controller.value.getMaxScaleOnAxis() > 1.01,
+    );
+    if (zoomed == _isZoomed) return;
+    setState(() => _isZoomed = zoomed);
+  }
+
+  /// Resets the zoom of every image, e.g. after moving to another one.
+  void resetZooms() {
+    for (final controller in _transformations.values) {
+      if (!controller.value.isIdentity()) {
+        controller.value = Matrix4.identity();
+      }
+    }
+  }
+
   @override
   void initState() {
     super.initState();
@@ -72,6 +123,8 @@ class ImageViewerController extends State<ImageViewer> {
   }
 
   Future<void> prevImage() async {
+    if (!canGoBack) return;
+    resetZooms();
     await pageController.previousPage(
       duration: FluffyThemes.animationDuration,
       curve: FluffyThemes.animationCurve,
@@ -81,6 +134,8 @@ class ImageViewerController extends State<ImageViewer> {
   }
 
   Future<void> nextImage() async {
+    if (!canGoNext) return;
+    resetZooms();
     await pageController.nextPage(
       duration: FluffyThemes.animationDuration,
       curve: FluffyThemes.animationCurve,
@@ -112,23 +167,57 @@ class ImageViewerController extends State<ImageViewer> {
 
   static const maxScaleFactor = 1.5;
 
+  /// Closes the viewer.
+  ///
+  /// Always targets the root navigator, because the viewer is opened with
+  /// `showDialog` on the root navigator while the chat room lives in a nested
+  /// navigator of the go_router shell. Using a relative navigator here would
+  /// either pop nothing or pop the wrong route.
+  void closeAction() => Navigator.of(context, rootNavigator: true).pop();
+
   /// Go back if user swiped it away
   void onInteractionEnds(ScaleEndDetails endDetails) {
     if (PlatformInfos.usesTouchscreen == false) {
+      if (isZoomed) return;
       if (endDetails.velocity.pixelsPerSecond.dy >
           MediaQuery.sizeOf(context).height * maxScaleFactor) {
-        Navigator.of(context, rootNavigator: false).pop();
+        closeAction();
       }
     }
   }
 
   @override
   void dispose() {
+    for (final controller in _transformations.values) {
+      controller.removeListener(_onTransformChanged);
+      controller.dispose();
+    }
+    _transformations.clear();
     focusNode.dispose();
     pageController.dispose();
     super.dispose();
   }
 
   @override
-  Widget build(BuildContext context) => ImageViewerView(this);
+  Widget build(BuildContext context) => BackButtonListener(
+    // A [PopScope] alone is not enough here: go_router's `popRoute()` asks
+    // `GoRouterDelegate._findCurrentNavigators()`, which returns the shell
+    // navigator BEFORE the root one. The viewer is a dialog on the root
+    // navigator, so the shell navigator never sees its [PopEntry], pops the
+    // chat room instead and returns `true`, leaving the image on screen.
+    // A [BackButtonListener] is asked before the router gets the request at
+    // all, so the viewer gets to close itself first.
+    onBackButtonPressed: () async {
+      closeAction();
+      return true;
+    },
+    child: PopScope<Object?>(
+      canPop: false,
+      onPopInvokedWithResult: (didPop, _) {
+        if (didPop) return;
+        closeAction();
+      },
+      child: ImageViewerView(this),
+    ),
+  );
 }

lib/pages/image_viewer/image_viewer_view.dart

@@ -25,7 +25,7 @@ class ImageViewerView extends StatelessWidget {
       foregroundColor: Colors.white,
     );
     return GestureDetector(
-      onTap: () => Navigator.of(context).pop(),
+      onTap: controller.closeAction,
       child: Scaffold(
         backgroundColor: Colors.black.withAlpha(128),
         extendBodyBehindAppBar: true,
@@ -34,7 +34,7 @@ class ImageViewerView extends StatelessWidget {
           leading: IconButton(
             style: iconButtonStyle,
             icon: const Icon(Icons.close),
-            onPressed: Navigator.of(context).pop,
+            onPressed: controller.closeAction,
             color: Colors.white,
             tooltip: L10n.of(context).close,
           ),
@@ -78,9 +78,16 @@ class ImageViewerView extends StatelessWidget {
               KeyboardListener(
                 focusNode: controller.focusNode,
                 onKeyEvent: controller.onKeyEvent,
+                child: Listener(
+                  onPointerDown: (_) => controller.onPointerDown(),
+                  onPointerUp: (_) => controller.onPointerUp(),
+                  onPointerCancel: (_) => controller.onPointerUp(),
                   child: PageView.builder(
                     scrollDirection: Axis.vertical,
                     controller: controller.pageController,
+                    physics: controller.canSwipeToNextImage
+                        ? const PageScrollPhysics()
+                        : const NeverScrollableScrollPhysics(),
                     itemCount: controller.allEvents.length,
                     itemBuilder: (context, i) {
                       final event = controller.allEvents[i];
@@ -100,6 +107,8 @@ class ImageViewerView extends StatelessWidget {
                         case MessageTypes.Sticker:
                         default:
                           return InteractiveViewer(
+                            transformationController: controller
+                                .transformationControllerFor(event),
                             minScale: 1.0,
                             maxScale: 10.0,
                             onInteractionEnd: controller.onInteractionEnds,
@@ -124,6 +133,7 @@ class ImageViewerView extends StatelessWidget {
                     },
                   ),
                 ),
+              ),
               if (hovered)
                 Align(
                   alignment: Alignment.centerRight,

lib/pages/mural/mural_chat_page.dart

@@ -14,6 +14,7 @@ import 'package:tatchat/config/themes.dart';
 import 'package:tatchat/l10n/l10n.dart';
 import 'package:tatchat/pages/chat/send_file_dialog.dart';
 import 'package:tatchat/pages/chat/sticker_picker_dialog.dart';
+import 'package:tatchat/pages/image_viewer/image_viewer.dart';
 import 'package:tatchat/pages/image_viewer/video_player.dart';
 import 'package:tatchat/utils/adaptive_bottom_sheet.dart';
 import 'package:tatchat/utils/matrix_sdk_extensions/matrix_locals.dart';
@@ -306,6 +307,19 @@ class _MuralChatViewState extends State<MuralChatView> {
     );
   }
 
+  /// Long press on a grid cell: open the same fullscreen viewer a room image
+  /// uses, instead of the bottom sheet, so pinch-to-zoom and swiping between
+  /// the media of the mural are available there too.
+  void _openMediaFullscreen(Event event) {
+    final timeline = this.timeline;
+    if (timeline == null) return;
+    showDialog<void>(
+      context: context,
+      builder: (_) =>
+          ImageViewer(event, timeline: timeline, outerContext: context),
+    );
+  }
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
@@ -395,6 +409,7 @@ class _MuralChatViewState extends State<MuralChatView> {
                         client: room.client,
                         cellSize: gridCellSize,
                         onTap: () => _openMedia(event),
+                        onLongPress: () => _openMediaFullscreen(event),
                       );
                     },
                   ),
@@ -656,12 +671,14 @@ class _MediaCell extends StatelessWidget {
   final Client client;
   final double cellSize;
   final VoidCallback onTap;
+  final VoidCallback onLongPress;
 
   const _MediaCell({
     required this.event,
     required this.client,
     required this.cellSize,
     required this.onTap,
+    required this.onLongPress,
   });
 
   @override
@@ -678,6 +695,7 @@ class _MediaCell extends StatelessWidget {
         : null;
     return GestureDetector(
       onTap: onTap,
+      onLongPress: onLongPress,
       child: ColoredBox(
         color: theme.colorScheme.surfaceContainerHighest,
         child: Stack(

lib/pages/settings_style/settings_style.dart

@@ -10,6 +10,7 @@ import 'package:tatchat/utils/file_selector.dart';
 import 'package:tatchat/widgets/future_loading_dialog.dart';
 import 'package:tatchat/widgets/theme_builder.dart';
 import 'package:material_ui/material_ui.dart';
+import 'package:matrix/matrix.dart';
 
 import '../../widgets/matrix.dart';
 import 'settings_style_view.dart';
@@ -22,11 +23,18 @@ class SettingsStyle extends StatefulWidget {
 }
 
 class SettingsStyleController extends State<SettingsStyle> {
-  void setChatColor(Color? color) {
+  Future<void> setChatColor(Color? color) async {
+    final client = Matrix.of(context).client;
+    final themeController = ThemeController.of(context);
     AppSettings.colorSchemeSeedInt.setItem(
       color?.toARGB32() ?? AppSettings.colorSchemeSeedInt.defaultValue,
     );
-    ThemeController.of(context).setPrimaryColor(color);
+    await themeController.setPrimaryColor(color);
+    try {
+      await client.setApplicationAccountColor(color?.toARGB32());
+    } catch (e, s) {
+      Logs().e('Unable to save chat color', e, s);
+    }
   }
 
   Future<void> setWallpaper() async {
@@ -105,16 +113,30 @@ class SettingsStyleController extends State<SettingsStyle> {
     });
   }
 
-  void deleteChatWallpaper() => showFutureLoadingDialog(
+  void deleteChatWallpaper() {
+    final client = Matrix.of(context).client;
+    showFutureLoadingDialog(
       context: context,
-    future: () => Matrix.of(context).client.setApplicationAccountConfig(
+      future: () => client.setApplicationAccountConfig(
-      const ApplicationAccountConfig(wallpaperUrl: null, wallpaperBlur: null),
+        ApplicationAccountConfig(
+          wallpaperUrl: null,
+          wallpaperBlur: null,
+          primaryColor: client.applicationAccountConfig.primaryColor,
+        ),
       ),
     );
+  }
 
   ThemeMode get currentTheme => ThemeController.of(context).themeMode;
   Color? get currentColor => ThemeController.of(context).primaryColor;
 
+  bool get softenThemeColor => ThemeController.of(context).softenPrimaryColor;
+
+  Future<void> setSoftenThemeColor(bool soften) async {
+    await ThemeController.of(context).setSoftenPrimaryColor(soften);
+    setState(() {});
+  }
+
   void switchTheme(ThemeMode? newTheme) {
     if (newTheme == null) return;
     switch (newTheme) {

lib/pages/settings_style/settings_style_view.dart

@@ -136,6 +136,13 @@ class SettingsStyleView extends StatelessWidget {
                 );
               },
             ),
+            SwitchListTile(
+              secondary: const Icon(Icons.palette_outlined),
+              title: Text(L10n.of(context).softenThemeColor),
+              subtitle: Text(L10n.of(context).softenThemeColorSubtitle),
+              value: controller.softenThemeColor,
+              onChanged: controller.setSoftenThemeColor,
+            ),
             Divider(color: theme.dividerColor),
             ListTile(
               title: Text(
@@ -176,21 +183,35 @@ class SettingsStyleView extends StatelessWidget {
                         child: Stack(
                           alignment: Alignment.center,
                           children: [
-                            if (accountConfig.wallpaperUrl != null)
                             Opacity(
-                                opacity: controller.wallpaperOpacity,
+                              opacity: accountConfig.wallpaperUrl != null
+                                  ? controller.wallpaperOpacity
+                                  : 0.3,
                               child: ImageFiltered(
                                 imageFilter: ImageFilter.blur(
-                                    sigmaX: controller.wallpaperBlur,
+                                  sigmaX: accountConfig.wallpaperUrl != null
-                                    sigmaY: controller.wallpaperBlur,
+                                      ? controller.wallpaperBlur
+                                      : 0.0,
+                                  sigmaY: accountConfig.wallpaperUrl != null
+                                      ? controller.wallpaperBlur
+                                      : 0.0,
+                                ),
+                                child: accountConfig.wallpaperUrl != null
+                                    ? MxcImage(
+                                        key: ValueKey(
+                                          accountConfig.wallpaperUrl,
                                         ),
-                                  child: MxcImage(
-                                    key: ValueKey(accountConfig.wallpaperUrl),
                                         uri: accountConfig.wallpaperUrl,
                                         fit: BoxFit.cover,
                                         isThumbnail: true,
                                         width: FluffyThemes.columnWidth * 2,
                                         height: 212,
+                                      )
+                                    : Image.asset(
+                                        'assets/logo/background.png',
+                                        fit: BoxFit.cover,
+                                        width: FluffyThemes.columnWidth * 2,
+                                        height: 212,
                                       ),
                               ),
                             ),
@@ -213,12 +234,10 @@ class SettingsStyleView extends StatelessWidget {
                                   ),
                                 ),
                                 Padding(
-                                  padding: EdgeInsets.only(
+                                  padding: const EdgeInsets.only(
                                     left: 12 + 12 + Avatar.defaultSize,
                                     right: 12,
-                                    top: accountConfig.wallpaperUrl == null
+                                    top: 12,
-                                        ? 0
-                                        : 12,
                                     bottom: 12,
                                   ),
                                   child: DecoratedBox(
@@ -246,12 +265,10 @@ class SettingsStyleView extends StatelessWidget {
                                 Align(
                                   alignment: Alignment.centerLeft,
                                   child: Padding(
-                                    padding: EdgeInsets.only(
+                                    padding: const EdgeInsets.only(
                                       right: 12,
                                       left: 12,
-                                      top: accountConfig.wallpaperUrl == null
+                                      top: 12,
-                                          ? 0
-                                          : 12,
                                       bottom: 12,
                                     ),
                                     child: Material(

lib/utils/account_config.dart

@@ -27,20 +27,53 @@ extension ApplicationAccountConfigExtension on Client {
         wallpaperOpacity:
             config.wallpaperOpacity ?? currentConfig.wallpaperOpacity,
         wallpaperBlur: config.wallpaperBlur ?? currentConfig.wallpaperBlur,
+        primaryColor: config.primaryColor ?? currentConfig.primaryColor,
+        softenThemeColor:
+            config.softenThemeColor ?? currentConfig.softenThemeColor,
       ).toJson(),
     );
   }
+
+  Future<void> setApplicationAccountColor(int? primaryColor) {
+    final currentConfig = applicationAccountConfig;
+    return setApplicationAccountConfig(
+      ApplicationAccountConfig(
+        wallpaperUrl: currentConfig.wallpaperUrl,
+        wallpaperOpacity: currentConfig.wallpaperOpacity,
+        wallpaperBlur: currentConfig.wallpaperBlur,
+        primaryColor: primaryColor,
+        softenThemeColor: currentConfig.softenThemeColor,
+      ),
+    );
+  }
+
+  Future<void> setApplicationAccountSoftenThemeColor(bool soften) {
+    final currentConfig = applicationAccountConfig;
+    return setApplicationAccountConfig(
+      ApplicationAccountConfig(
+        wallpaperUrl: currentConfig.wallpaperUrl,
+        wallpaperOpacity: currentConfig.wallpaperOpacity,
+        wallpaperBlur: currentConfig.wallpaperBlur,
+        primaryColor: currentConfig.primaryColor,
+        softenThemeColor: soften,
+      ),
+    );
+  }
 }
 
 class ApplicationAccountConfig {
   final Uri? wallpaperUrl;
   final double? wallpaperOpacity;
   final double? wallpaperBlur;
+  final int? primaryColor;
+  final bool? softenThemeColor;
 
   const ApplicationAccountConfig({
     this.wallpaperUrl,
     this.wallpaperOpacity,
     this.wallpaperBlur,
+    this.primaryColor,
+    this.softenThemeColor,
   });
 
   static double _sanitizedOpacity(double? opacity) {
@@ -58,11 +91,15 @@ class ApplicationAccountConfig {
           json.tryGet<double>('wallpaper_opacity'),
         ),
         wallpaperBlur: json.tryGet<double>('wallpaper_blur'),
+        primaryColor: json.tryGet<int>('primary_color'),
+        softenThemeColor: json.tryGet<bool>('soften_theme_color'),
       );
 
   Map<String, dynamic> toJson() => {
     'wallpaper_url': wallpaperUrl?.toString(),
     'wallpaper_opacity': wallpaperOpacity,
     'wallpaper_blur': wallpaperBlur,
+    'primary_color': primaryColor,
+    'soften_theme_color': softenThemeColor,
   };
 }

lib/utils/platform_infos.dart

@@ -72,13 +72,12 @@ abstract class PlatformInfos {
     final l10n = L10n.of(context);
     final theme = Theme.of(context);
     final size = MediaQuery.sizeOf(context);
+    final version = await getVersion();
+    if (!context.mounted) return;
     await m.showDialog<void>(
       context: context,
       builder: (context) => m.Dialog(
-        insetPadding: const EdgeInsets.symmetric(
+        insetPadding: const EdgeInsets.symmetric(horizontal: 24, vertical: 40),
-          horizontal: 24,
-          vertical: 40,
-        ),
         child: ConstrainedBox(
           constraints: BoxConstraints(
             maxWidth: 720,
@@ -110,13 +109,52 @@ abstract class PlatformInfos {
                             fontWeight: FontWeight.bold,
                           ),
                         ),
+                        const SizedBox(height: 12),
+                        Row(
+                          mainAxisAlignment: MainAxisAlignment.center,
+                          crossAxisAlignment: CrossAxisAlignment.center,
+                          children: [
+                            Text(
+                              l10n.versionWithNumber(version),
+                              style: theme.textTheme.bodyMedium?.copyWith(
+                                color: theme.colorScheme.onSurfaceVariant,
+                              ),
+                            ),
+                            const SizedBox(width: 8),
+                            Container(
+                              padding: const EdgeInsets.symmetric(
+                                horizontal: 8,
+                                vertical: 2,
+                              ),
+                              decoration: BoxDecoration(
+                                color: theme.colorScheme.tertiaryContainer,
+                                borderRadius: BorderRadius.circular(8),
+                              ),
+                              child: Text(
+                                'alpha',
+                                style: theme.textTheme.labelMedium?.copyWith(
+                                  color: theme.colorScheme.onTertiaryContainer,
+                                  fontWeight: FontWeight.bold,
+                                ),
+                              ),
+                            ),
+                          ],
+                        ),
+                        const SizedBox(height: 8),
+                        Text(
+                          'Esta versão ainda está em fase alpha: o '
+                          'aplicativo está em desenvolvimento e ainda pode '
+                          'apresentar erros.',
+                          textAlign: TextAlign.center,
+                          style: theme.textTheme.bodySmall?.copyWith(
+                            color: theme.colorScheme.onSurfaceVariant,
+                          ),
+                        ),
                         const SizedBox(height: 24),
                         Linkify(
                           text: aboutDescription,
                           textAlign: TextAlign.center,
-                          style: TextStyle(
+                          style: TextStyle(color: theme.colorScheme.onSurface),
-                            color: theme.colorScheme.onSurface,
-                          ),
                           options: const LinkifyOptions(humanize: false),
                           linkStyle: TextStyle(
                             color: theme.colorScheme.primary,

lib/utils/start_push_foreground_service.dart

@@ -68,9 +68,11 @@ abstract class ForegroundServices {
         }
         final result = await FlutterForegroundTask.startService(
           serviceTypes: [ForegroundServiceTypes.shortService],
-          notificationTitle: 'FluffyChat',
+          notificationTitle: 'TatuChat',
           notificationText: l10n.loadingMessages,
-          notificationIcon: NotificationIcon(metaDataName: 'ic_launcher'),
+          notificationIcon: NotificationIcon(
+            metaDataName: 'notifications_icon',
+          ),
         );
         final started = result is ServiceRequestSuccess;
         Logs().d('[PushHelper] Foreground service start: $started ($result)');

lib/widgets/matrix.dart

@@ -44,10 +44,13 @@ class Matrix extends StatefulWidget {
 
   final SharedPreferences store;
 
+  final ValueChanged<Client?>? onActiveClientChanged;
+
   const Matrix({
     this.child,
     required this.clients,
     required this.store,
+    this.onActiveClientChanged,
     this.queryParameters,
     super.key,
   });
@@ -89,11 +92,21 @@ class MatrixState extends State<Matrix> {
     final i = widget.clients.indexWhere((c) => c == cl);
     if (i != -1) {
       _activeClient = i;
+      _notifyActiveClientChanged();
     } else {
       Logs().w('Tried to set an unknown client ${cl!.userID} as active');
     }
   }
 
+  void _notifyActiveClientChanged() {
+    final callback = widget.onActiveClientChanged;
+    if (callback == null) return;
+    WidgetsBinding.instance.addPostFrameCallback((_) {
+      if (!mounted) return;
+      callback(widget.clients.isEmpty ? null : client);
+    });
+  }
+
   List<Client?>? get currentBundle {
     if (!hasComplexBundles) {
       return List.from(widget.clients);
@@ -256,19 +269,27 @@ class MatrixState extends State<Matrix> {
         .where((state) => state == LoginState.loggedOut)
         .listen((_) {
           final loggedInWithMultipleClients = widget.clients.length > 1;
+          final activeClient = client;
+          final removedIndex = widget.clients.indexOf(c);
+          final wasActive = removedIndex != -1 && activeClient == c;
 
           _cancelSubs(c.clientName);
           widget.clients.remove(c);
           ClientManager.removeClientNameFromStore(c.clientName, store);
           InitWithRestoreExtension.deleteSessionBackup(name);
+          if (removedIndex != -1 && _activeClient > removedIndex) {
+            _activeClient--;
+          }
+          if (wasActive) {
+            _activeClient = -1;
+          }
+          if (removedIndex != -1) {
+            _notifyActiveClientChanged();
+          }
 
           if (loggedInWithMultipleClients) {
             final snackbarContext =
-                TatuChatApp
+                TatuChatApp.router.routerDelegate.navigatorKey.currentContext ??
-                    .router
-                    .routerDelegate
-                    .navigatorKey
-                    .currentContext ??
                 context;
 
             if (!snackbarContext.mounted) return;
@@ -349,6 +370,7 @@ class MatrixState extends State<Matrix> {
         },
       );
     }
+    _notifyActiveClientChanged();
   }
 
   void didChangeAppLifecycleState(AppLifecycleState state) {

lib/widgets/mxc_image_viewer.dart

@@ -13,14 +13,34 @@ class MxcImageViewer extends StatelessWidget {
 
   const MxcImageViewer(this.mxContent, {super.key});
 
+  /// The viewer is opened with `showDialog` on the root navigator, so closing
+  /// it must always target the root navigator.
+  static void _close(BuildContext context) =>
+      Navigator.of(context, rootNavigator: true).pop();
+
   @override
   Widget build(BuildContext context) {
     final iconButtonStyle = IconButton.styleFrom(
       backgroundColor: Colors.black.withAlpha(200),
       foregroundColor: Colors.white,
     );
-    return GestureDetector(
+    return BackButtonListener(
-      onTap: () => Navigator.of(context).pop(),
+      // Same reason as the room image viewer: this dialog lives on the root
+      // navigator, but go_router asks the shell navigator first, so only a
+      // [BackButtonListener] (which runs before the router) can keep the back
+      // button from popping the page underneath.
+      onBackButtonPressed: () async {
+        _close(context);
+        return true;
+      },
+      child: PopScope<Object?>(
+        canPop: false,
+        onPopInvokedWithResult: (didPop, _) {
+          if (didPop) return;
+          _close(context);
+        },
+        child: GestureDetector(
+          onTap: () => _close(context),
           child: Scaffold(
             backgroundColor: Colors.black.withAlpha(128),
             extendBodyBehindAppBar: true,
@@ -29,7 +49,7 @@ class MxcImageViewer extends StatelessWidget {
               leading: IconButton(
                 style: iconButtonStyle,
                 icon: const Icon(Icons.close),
-            onPressed: Navigator.of(context).pop,
+                onPressed: () => _close(context),
                 color: Colors.white,
                 tooltip: L10n.of(context).close,
               ),
@@ -41,7 +61,7 @@ class MxcImageViewer extends StatelessWidget {
               onInteractionEnd: (endDetails) {
                 if (endDetails.velocity.pixelsPerSecond.dy >
                     MediaQuery.sizeOf(context).height * 1.5) {
-              Navigator.of(context, rootNavigator: false).pop();
+                  _close(context);
                 }
               },
               child: Center(
@@ -59,6 +79,8 @@ class MxcImageViewer extends StatelessWidget {
               ),
             ),
           ),
+        ),
+      ),
     );
   }
 }

lib/widgets/tatu_chat_app.dart

@@ -65,14 +65,21 @@ class TatuChatApp extends StatelessWidget {
   @override
   Widget build(BuildContext context) {
     return ThemeBuilder(
-      builder: (context, themeMode, primaryColor) => MaterialApp.router(
+      builder: (context, themeMode, primaryColor, themeController) =>
+          MaterialApp.router(
             title: AppSettings.applicationName.value,
             themeMode: themeMode,
-        theme: FluffyThemes.buildTheme(context, Brightness.light, primaryColor),
+            theme: FluffyThemes.buildTheme(
+              context,
+              Brightness.light,
+              primaryColor,
+              themeController.softenPrimaryColor,
+            ),
             darkTheme: FluffyThemes.buildTheme(
               context,
               Brightness.dark,
               primaryColor,
+              themeController.softenPrimaryColor,
             ),
             scrollBehavior: CustomScrollBehavior(),
             localizationsDelegates: [
@@ -91,6 +98,9 @@ class TatuChatApp extends StatelessWidget {
               child: Matrix(
                 clients: clients,
                 store: store,
+                onActiveClientChanged: (client) {
+                  themeController.setAccountClient(client);
+                },
                 child: CallOverlay(
                   child: testWidget ?? child ?? const SizedBox.shrink(),
                 ),

lib/widgets/theme_builder.dart

@@ -3,10 +3,15 @@
 //
 // SPDX-License-Identifier: AGPL-3.0-or-later
 
+import 'dart:async';
+
 import 'package:collection/collection.dart';
 import 'package:dynamic_color/dynamic_color.dart';
+import 'package:tatchat/config/setting_keys.dart';
+import 'package:tatchat/utils/account_config.dart';
 import 'package:tatchat/utils/color_value.dart';
 import 'package:material_ui/material_ui.dart';
+import 'package:matrix/matrix.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
@@ -15,6 +20,7 @@ class ThemeBuilder extends StatefulWidget {
     BuildContext context,
     ThemeMode themeMode,
     Color? primaryColor,
+    ThemeController controller,
   )
   builder;
 
@@ -36,14 +42,42 @@ class ThemeController extends State<ThemeBuilder> {
   SharedPreferences? _sharedPreferences;
   ThemeMode? _themeMode;
   Color? _primaryColor;
+  Color? _localPrimaryColor;
+  Color? _accountPrimaryColor;
+  bool _softenPrimaryColor = false;
+  bool _localSoftenPrimaryColor = false;
+  bool? _accountSoftenPrimaryColor;
+  Client? _accountClient;
+  StreamSubscription<SyncUpdate>? _accountClientSubscription;
+  int _accountClientGeneration = 0;
 
   ThemeMode get themeMode => _themeMode ?? ThemeMode.system;
 
   Color? get primaryColor => _primaryColor;
 
+  bool get softenPrimaryColor => _softenPrimaryColor;
+
   static ThemeController of(BuildContext context) =>
       Provider.of<ThemeController>(context, listen: false);
 
+  void _updatePrimaryColor() {
+    if (!mounted) return;
+    final newColor = _accountPrimaryColor ?? _localPrimaryColor;
+    if (newColor == _primaryColor) return;
+    setState(() {
+      _primaryColor = newColor;
+    });
+  }
+
+  void _updateSoftenPrimaryColor() {
+    if (!mounted) return;
+    final newValue = _accountSoftenPrimaryColor ?? _localSoftenPrimaryColor;
+    if (newValue == _softenPrimaryColor) return;
+    setState(() {
+      _softenPrimaryColor = newValue;
+    });
+  }
+
   Future<void> _loadData(_) async {
     final preferences = _sharedPreferences ??=
         await SharedPreferences.getInstance();
@@ -51,12 +85,16 @@ class ThemeController extends State<ThemeBuilder> {
     final rawThemeMode = preferences.getString(widget.themeModeSettingsKey);
     final rawColor = preferences.getInt(widget.primaryColorSettingsKey);
 
+    if (!mounted) return;
     setState(() {
       _themeMode = ThemeMode.values.singleWhereOrNull(
         (value) => value.name == rawThemeMode,
       );
-      _primaryColor = rawColor == null ? null : Color(rawColor);
+      _localPrimaryColor = rawColor == null ? null : Color(rawColor);
+      _localSoftenPrimaryColor = AppSettings.softenThemeColor.value;
     });
+    _updatePrimaryColor();
+    _updateSoftenPrimaryColor();
   }
 
   Future<void> setThemeMode(ThemeMode newThemeMode) async {
@@ -69,6 +107,12 @@ class ThemeController extends State<ThemeBuilder> {
   }
 
   Future<void> setPrimaryColor(Color? newPrimaryColor) async {
+    if (!mounted) return;
+    setState(() {
+      _localPrimaryColor = newPrimaryColor;
+      _accountPrimaryColor = newPrimaryColor;
+      _primaryColor = newPrimaryColor;
+    });
     final preferences = _sharedPreferences ??=
         await SharedPreferences.getInstance();
     if (newPrimaryColor == null) {
@@ -79,9 +123,78 @@ class ThemeController extends State<ThemeBuilder> {
         newPrimaryColor.hexValue,
       );
     }
+  }
+
+  Future<void> setSoftenPrimaryColor(bool soften) async {
+    await AppSettings.softenThemeColor.setItem(soften);
+    if (!mounted) return;
     setState(() {
-      _primaryColor = newPrimaryColor;
+      _localSoftenPrimaryColor = soften;
+      _accountSoftenPrimaryColor = soften;
+      _softenPrimaryColor = soften;
     });
+    final client = _accountClient;
+    if (client == null) return;
+    try {
+      await client.setApplicationAccountSoftenThemeColor(soften);
+    } catch (err) {
+      Logs().e('TatuChat: failed to sync soften theme color', err);
+    }
+  }
+
+  void setAccountClient(Client? client) {
+    if (!mounted) return;
+    final generation = ++_accountClientGeneration;
+    _accountClientSubscription?.cancel();
+    _accountClientSubscription = null;
+    _accountClient = client;
+    _accountPrimaryColor = null;
+    _accountSoftenPrimaryColor = null;
+    _updatePrimaryColor();
+    _updateSoftenPrimaryColor();
+    if (client == null) return;
+
+    unawaited(_loadAccountClientConfig(client, generation));
+    _accountClientSubscription = client.onSync.stream
+        .where(
+          (sync) =>
+              sync.accountData?.any(
+                (accountData) =>
+                    accountData.type ==
+                    ApplicationAccountConfigExtension.accountDataKey,
+              ) ??
+              false,
+        )
+        .listen((_) => _applyAccountClientConfig(client, generation));
+  }
+
+  Future<void> _loadAccountClientConfig(Client client, int generation) async {
+    final accountDataLoading = client.accountDataLoading;
+    if (accountDataLoading != null) {
+      try {
+        await accountDataLoading;
+      } catch (_) {}
+    }
+    if (!mounted ||
+        generation != _accountClientGeneration ||
+        !identical(_accountClient, client)) {
+      return;
+    }
+    _applyAccountClientConfig(client, generation);
+  }
+
+  void _applyAccountClientConfig(Client client, int generation) {
+    if (!mounted ||
+        generation != _accountClientGeneration ||
+        !identical(_accountClient, client)) {
+      return;
+    }
+    final config = client.applicationAccountConfig;
+    final primaryColor = config.primaryColor;
+    _accountPrimaryColor = primaryColor == null ? null : Color(primaryColor);
+    _accountSoftenPrimaryColor = config.softenThemeColor;
+    _updatePrimaryColor();
+    _updateSoftenPrimaryColor();
   }
 
   @override
@@ -95,9 +208,19 @@ class ThemeController extends State<ThemeBuilder> {
     return Provider(
       create: (_) => this,
       child: DynamicColorBuilder(
-        builder: (light, _) =>
+        builder: (light, _) => widget.builder(
-            widget.builder(context, themeMode, primaryColor ?? light?.primary),
+          context,
+          themeMode,
+          primaryColor ?? light?.primary,
+          this,
+        ),
       ),
     );
   }
+
+  @override
+  void dispose() {
+    _accountClientSubscription?.cancel();
+    super.dispose();
+  }
 }

linux/my_application.cc

@@ -64,6 +64,8 @@ static void my_application_activate(GApplication* application) {
 
   g_autoptr(FlDartProject) project = fl_dart_project_new();
   fl_dart_project_set_dart_entrypoint_arguments(project, self->dart_entrypoint_arguments);
+  // Disable Impeller to avoid a black screen on hybrid Intel/NVIDIA GPUs.
+  fl_dart_project_set_enable_impeller(project, FALSE);
 
   FlView* view = fl_view_new(project);
   gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(view));

pubspec.yaml

@@ -118,6 +118,7 @@ flutter:
   uses-material-design: true
   assets:
     - assets/
+    - assets/logo/background.png
     - assets/logo/mini/
     - assets/miniapps/
     - assets/sounds/

test/account_config_test.dart

@@ -0,0 +1,114 @@
+// SPDX-FileCopyrightText: 2026 TatuChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tatchat/utils/account_config.dart';
+
+void main() {
+  group('ApplicationAccountConfig', () {
+    test('Parses primary color from account data', () {
+      final config = ApplicationAccountConfig.fromJson({
+        'primary_color': 0xFF6750A4,
+      });
+      expect(config.primaryColor, 0xFF6750A4);
+    });
+
+    test('Ignores primary color of unexpected type', () {
+      expect(
+        ApplicationAccountConfig.fromJson({
+          'primary_color': '4286369748',
+        }).primaryColor,
+        isNull,
+      );
+      expect(
+        ApplicationAccountConfig.fromJson({'primary_color': 1.5}).primaryColor,
+        isNull,
+      );
+    });
+
+    test('Defaults primary color to null when absent', () {
+      expect(ApplicationAccountConfig.fromJson({}).primaryColor, isNull);
+    });
+
+    test('Serializes primary color', () {
+      const config = ApplicationAccountConfig(primaryColor: 0xFF00D084);
+      expect(config.toJson()['primary_color'], 0xFF00D084);
+    });
+
+    test('Serializes missing primary color as null', () {
+      const config = ApplicationAccountConfig(wallpaperOpacity: 0.5);
+      expect(config.toJson()['primary_color'], isNull);
+    });
+
+    test('Round trips through json', () {
+      final config = ApplicationAccountConfig(
+        wallpaperUrl: Uri.parse('mxc://example.invalid/wallpaper'),
+        wallpaperOpacity: 0.3,
+        wallpaperBlur: 4,
+        primaryColor: 0xFF6750A4,
+        softenThemeColor: true,
+      );
+      final parsed = ApplicationAccountConfig.fromJson(config.toJson());
+      expect(parsed.wallpaperUrl, config.wallpaperUrl);
+      expect(parsed.wallpaperOpacity, config.wallpaperOpacity);
+      expect(parsed.wallpaperBlur, config.wallpaperBlur);
+      expect(parsed.primaryColor, config.primaryColor);
+      expect(parsed.softenThemeColor, config.softenThemeColor);
+    });
+
+    test('Keeps existing wallpaper defaults when parsing color only', () {
+      final config = ApplicationAccountConfig.fromJson({
+        'primary_color': 0xFF6750A4,
+      });
+      expect(config.wallpaperUrl, isNull);
+      expect(config.wallpaperOpacity, 1);
+      expect(config.wallpaperBlur, isNull);
+    });
+
+    test('Parses soften theme color from account data', () {
+      expect(
+        ApplicationAccountConfig.fromJson({
+          'soften_theme_color': true,
+        }).softenThemeColor,
+        isTrue,
+      );
+      expect(
+        ApplicationAccountConfig.fromJson({
+          'soften_theme_color': false,
+        }).softenThemeColor,
+        isFalse,
+      );
+    });
+
+    test('Ignores soften theme color of unexpected type', () {
+      expect(
+        ApplicationAccountConfig.fromJson({
+          'soften_theme_color': 'yes',
+        }).softenThemeColor,
+        isNull,
+      );
+    });
+
+    test('Defaults soften theme color to null when absent', () {
+      expect(ApplicationAccountConfig.fromJson({}).softenThemeColor, isNull);
+    });
+
+    test('Serializes soften theme color', () {
+      const config = ApplicationAccountConfig(softenThemeColor: true);
+      expect(config.toJson()['soften_theme_color'], true);
+    });
+
+    test('Serializes missing soften theme color as null', () {
+      const config = ApplicationAccountConfig(primaryColor: 0xFF00D084);
+      expect(config.toJson()['soften_theme_color'], isNull);
+    });
+
+    test('Round trips soften theme color through json', () {
+      final parsed = ApplicationAccountConfig.fromJson(
+        const ApplicationAccountConfig(softenThemeColor: true).toJson(),
+      );
+      expect(parsed.softenThemeColor, isTrue);
+    });
+  });
+}