feat: add bottom sheet theme

Author: Feichtmeier

example/lib/src/home/home_page.dart

@@ -161,6 +161,30 @@ class _AppBar extends StatelessWidget implements PreferredSizeWidget {
                 onPressed: () => showSnack(context),
                 icon: const Icon(Icons.add),
               ),
+              IconButton(
+                onPressed: () => showBottomSheet(
+                  context: context,
+                  builder: (context) => BottomSheet(
+                    enableDrag: false,
+                    onClosing: () {},
+                    builder: (context) => ListView(
+                      padding: const EdgeInsets.all(18.0),
+                      shrinkWrap: true,
+                      children: [
+                        ListTile(
+                          title: const Text('hello'),
+                          onTap: Navigator.of(context).pop,
+                        ),
+                        ListTile(
+                          title: const Text('hello'),
+                          onTap: Navigator.of(context).pop,
+                        ),
+                      ],
+                    ),
+                  ),
+                ),
+                icon: const Icon(Icons.vertical_align_top),
+              ),
               ValueListenableBuilder(
                 valueListenable: themeModeNotifier,
                 builder: (context, themeMode, widget) {

lib/src/theme.dart

@@ -124,9 +124,28 @@ ThemeData _phoenixTheme({
       colorScheme: colorScheme,
       textStyle: const TextStyle(fontSize: 14, height: 1.08),
     ),
+    bottomSheetTheme: _createBottomSheetTheme(colorScheme),
   );
 }
 
+BottomSheetThemeData _createBottomSheetTheme(ColorScheme colorScheme) =>
+    BottomSheetThemeData(
+      elevation: 3,
+      modalBackgroundColor: _menuBg(colorScheme),
+      backgroundColor: _menuBg(colorScheme),
+      shape: RoundedRectangleBorder(
+        borderRadius: const BorderRadius.only(
+          topRight: Radius.circular(_kContainerRadius),
+          topLeft: Radius.circular(_kContainerRadius),
+        ),
+        side: colorScheme.isLight
+            ? BorderSide.none
+            : BorderSide(
+                color: Colors.white.withOpacity(0.05),
+              ),
+      ),
+    );
+
 ColorScheme _darkScheme(Color color) {
   final colorScheme = ColorScheme.fromSeed(
     seedColor: color,