Use opaque surfaces for wallet overlays and dropdowns

lib/app.dart

@@ -25,8 +25,8 @@ class PeyaApp extends ConsumerStatefulWidget {
 }
 
 class _PeyaAppState extends ConsumerState<PeyaApp> with WindowListener {
-  static const _bgPanel = Color(0xD60C1824);
-  static const _bgPanelStrong = Color(0xF00F1C2B);
+  static const _bgPanel = Color(0xFF0C1824);
+  static const _bgPanelStrong = Color(0xFF0F1C2B);
   static const _line = Color(0x1F88FFE1);
   static const _textMain = Color(0xFFEFFAF8);
   static const _textSoft = Color(0xFF9DB7B2);
@@ -739,7 +739,7 @@ class _PeyaAppState extends ConsumerState<PeyaApp> with WindowListener {
       ),
       inputDecorationTheme: InputDecorationTheme(
         filled: true,
-        fillColor: const Color(0x14FFFFFF),
+        fillColor: const Color(0xFF122031),
         border: OutlineInputBorder(
           borderRadius: BorderRadius.circular(18),
           borderSide: const BorderSide(color: _line),
@@ -754,6 +754,35 @@ class _PeyaAppState extends ConsumerState<PeyaApp> with WindowListener {
         ),
         labelStyle: const TextStyle(color: _textSoft),
       ),
+      dropdownMenuTheme: DropdownMenuThemeData(
+        menuStyle: MenuStyle(
+          backgroundColor: WidgetStatePropertyAll(_bgPanelStrong),
+          surfaceTintColor: const WidgetStatePropertyAll(Colors.transparent),
+          shape: WidgetStatePropertyAll(
+            RoundedRectangleBorder(
+              borderRadius: BorderRadius.circular(18),
+              side: const BorderSide(color: _line),
+            ),
+          ),
+        ),
+        textStyle: const TextStyle(color: _textMain),
+        inputDecorationTheme: InputDecorationTheme(
+          filled: true,
+          fillColor: _bgPanel,
+          border: OutlineInputBorder(
+            borderRadius: BorderRadius.circular(18),
+            borderSide: const BorderSide(color: _line),
+          ),
+          enabledBorder: OutlineInputBorder(
+            borderRadius: BorderRadius.circular(18),
+            borderSide: const BorderSide(color: _line),
+          ),
+          focusedBorder: OutlineInputBorder(
+            borderRadius: BorderRadius.circular(18),
+            borderSide: const BorderSide(color: _accentCyan),
+          ),
+        ),
+      ),
       elevatedButtonTheme: ElevatedButtonThemeData(
         style: ElevatedButton.styleFrom(
           backgroundColor: _accentMint,

lib/ui/screens/account_screen.dart

@@ -701,6 +701,7 @@ class _SubaddressSectionState extends State<_SubaddressSection> {
                         Text(l10n.subaddressesPerPageLabel),
                         const SizedBox(width: 8),
                         DropdownButton<int>(
+                          dropdownColor: Theme.of(context).dialogTheme.backgroundColor,
                           value: _pageSize,
                           items: const [10, 20, 50, 100]
                               .map(

lib/ui/screens/settings_screen.dart

@@ -210,6 +210,7 @@ class SettingsScreen extends ConsumerWidget {
         ListTile(
           title: Text(l10n.autoSyncIntervalLabel),
           trailing: DropdownButton<Duration>(
+            dropdownColor: Theme.of(context).dialogTheme.backgroundColor,
             value: _resolveInterval(config.autoSyncInterval),
             onChanged: (value) {
               if (value != null) {
@@ -233,6 +234,7 @@ class SettingsScreen extends ConsumerWidget {
         const Divider(height: 32),
         Text(l10n.languageSettingsTitle, style: Theme.of(context).textTheme.titleMedium),
         DropdownButton<LanguagePreference>(
+          dropdownColor: Theme.of(context).dialogTheme.backgroundColor,
           value: config.languagePreference,
           onChanged: (value) {
             if (value != null) {

lib/ui/screens/transactions_screen.dart

@@ -127,6 +127,7 @@ class _TransactionsScreenState extends ConsumerState<TransactionsScreen> {
               Text(l10n.transactionsPerPageLabel),
               const SizedBox(width: 8),
               DropdownButton<int>(
+                dropdownColor: Theme.of(context).dialogTheme.backgroundColor,
                 value: _pageSize,
                 items: [
                   for (final size in pageSizes)