Initial commit

lib/utils/string_color.dart

@@ -0,0 +1,25 @@
+// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
+// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:material_ui/material_ui.dart';
+
+extension StringColor on String {
+  static final _colorSchemeCache = <String, ColorScheme>{};
+
+  ColorScheme get colorScheme =>
+      _colorSchemeCache[this] ??= ColorScheme.fromSeed(
+        seedColor: _getColorLight(0.3),
+        dynamicSchemeVariant: DynamicSchemeVariant.rainbow,
+      );
+
+  Color _getColorLight(double light) {
+    var number = 0.0;
+    for (var i = 0; i < length; i++) {
+      number += codeUnitAt(i);
+    }
+    number = (number % 12) * 25.5;
+    return HSLColor.fromAHSL(0.75, number, 1, light).toColor();
+  }
+}