unify handling of themes

accessible theming/high contrast support

lib/theme/views/styled_dialog.dart

@@ -0,0 +1,59 @@
+import 'package:awesome_extensions/awesome_extensions.dart';
+import 'package:flutter/foundation.dart';
+import 'package:flutter/material.dart';
+
+import '../theme.dart';
+
+class StyledDialog extends StatelessWidget {
+  const StyledDialog({required this.title, required this.child, super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    final theme = Theme.of(context);
+    final scale = theme.extension<ScaleScheme>()!;
+    final textTheme = theme.textTheme;
+
+    return AlertDialog(
+        elevation: 0,
+        shape: const RoundedRectangleBorder(
+          borderRadius: BorderRadius.all(Radius.circular(16)),
+        ),
+        contentPadding: const EdgeInsets.all(4),
+        backgroundColor: scale.primaryScale.dialogBorder,
+        title: Text(
+          title,
+          style: textTheme.titleMedium!
+              .copyWith(color: scale.primaryScale.borderText),
+          textAlign: TextAlign.center,
+        ),
+        titlePadding: const EdgeInsets.fromLTRB(4, 4, 4, 4),
+        content: DecoratedBox(
+            decoration: ShapeDecoration(
+                color: scale.primaryScale.border,
+                shape: RoundedRectangleBorder(
+                    borderRadius: BorderRadius.circular(16))),
+            child: DecoratedBox(
+                decoration: ShapeDecoration(
+                    color: scale.primaryScale.appBackground,
+                    shape: RoundedRectangleBorder(
+                        borderRadius: BorderRadius.circular(12))),
+                child: child.paddingAll(0))));
+  }
+
+  static Future<T?> show<T>(
+          {required BuildContext context,
+          required String title,
+          required Widget child}) async =>
+      showDialog<T>(
+          context: context,
+          builder: (context) => StyledDialog(title: title, child: child));
+
+  final String title;
+  final Widget child;
+
+  @override
+  void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+    super.debugFillProperties(properties);
+    properties.add(StringProperty('title', title));
+  }
+}