feat: theme update (#645)

lib/app_colors.dart

@@ -26,10 +26,8 @@ Color get COLOR_ACTION {
   }
 }
 
-// Return an "app bar" color based on the current theme
-Color get COLOR_APP_BAR {
-  return Color.fromRGBO(55, 150, 175, 1);
-}
+// Set to null to use the system default
+Color? COLOR_APP_BAR;
 
 const Color COLOR_WARNING = Color.fromRGBO(250, 150, 50, 1);
 const Color COLOR_DANGER = Color.fromRGBO(200, 50, 75, 1);

lib/main.dart

@@ -166,7 +166,7 @@ class InvenTreeAppState extends State<StatefulWidget> {
         colorSchemeSeed: Colors.blue,
         useMaterial3: true,
       ),
-      initial: savedThemeMode ?? AdaptiveThemeMode.light,
+      initial: savedThemeMode ?? AdaptiveThemeMode.system,
       builder: (light, dark) => MaterialApp(
         theme: light,
         darkTheme: dark,

lib/widget/drawer.dart

@@ -19,6 +19,81 @@ import "package:inventree/widget/stock/location_display.dart";
 /*
  * Custom "drawer" widget for the InvenTree app.
  */
+// Dialog for theme selection
+class ThemeSelectionDialog extends StatelessWidget {
+  const ThemeSelectionDialog({Key? key, required this.onThemeSelected})
+    : super(key: key);
+
+  final VoidCallback onThemeSelected;
+
+  @override
+  Widget build(BuildContext context) {
+    final currentThemeMode = AdaptiveTheme.of(context).mode;
+
+    return AlertDialog(
+      title: Text(L10().colorScheme),
+      content: Column(
+        mainAxisSize: MainAxisSize.min,
+        children: [
+          RadioListTile<AdaptiveThemeMode>(
+            title: Row(
+              children: [
+                Icon(TablerIcons.device_desktop),
+                SizedBox(width: 10),
+                Text("System"),
+              ],
+            ),
+            value: AdaptiveThemeMode.system,
+            groupValue: currentThemeMode,
+            onChanged: (value) {
+              AdaptiveTheme.of(context).setThemeMode(AdaptiveThemeMode.system);
+              onThemeSelected();
+            },
+          ),
+          RadioListTile<AdaptiveThemeMode>(
+            title: Row(
+              children: [
+                Icon(TablerIcons.sun),
+                SizedBox(width: 10),
+                Text("Light"),
+              ],
+            ),
+            value: AdaptiveThemeMode.light,
+            groupValue: currentThemeMode,
+            onChanged: (value) {
+              AdaptiveTheme.of(context).setThemeMode(AdaptiveThemeMode.light);
+              onThemeSelected();
+            },
+          ),
+          RadioListTile<AdaptiveThemeMode>(
+            title: Row(
+              children: [
+                Icon(TablerIcons.moon),
+                SizedBox(width: 10),
+                Text("Dark"),
+              ],
+            ),
+            value: AdaptiveThemeMode.dark,
+            groupValue: currentThemeMode,
+            onChanged: (value) {
+              AdaptiveTheme.of(context).setThemeMode(AdaptiveThemeMode.dark);
+              onThemeSelected();
+            },
+          ),
+        ],
+      ),
+      actions: [
+        TextButton(
+          onPressed: () {
+            Navigator.of(context).pop();
+          },
+          child: Text("Cancel"),
+        ),
+      ],
+    );
+  }
+}
+
 class InvenTreeDrawer extends StatelessWidget {
   const InvenTreeDrawer(this.context);
 
@@ -118,6 +193,18 @@ class InvenTreeDrawer extends StatelessWidget {
     );
   }
 
+  // Return an icon representing the current theme mode
+  Widget _getThemeModeIcon(AdaptiveThemeMode mode) {
+    switch (mode) {
+      case AdaptiveThemeMode.dark:
+        return Icon(TablerIcons.moon);
+      case AdaptiveThemeMode.light:
+        return Icon(TablerIcons.sun);
+      case AdaptiveThemeMode.system:
+        return Icon(TablerIcons.device_desktop);
+    }
+  }
+
   // Construct list of tiles to display in the "drawer" menu
   List<Widget> drawerTiles(BuildContext context) {
     List<Widget> tiles = [];
@@ -125,7 +212,7 @@ class InvenTreeDrawer extends StatelessWidget {
     // "Home" access
     tiles.add(
       ListTile(
-        leading: Icon(TablerIcons.home, color: COLOR_ACTION),
+        leading: Image.asset("assets/image/logo_transparent.png", height: 24),
         title: Text(
           L10().appTitle,
           style: TextStyle(fontWeight: FontWeight.bold),
@@ -195,18 +282,25 @@ class InvenTreeDrawer extends StatelessWidget {
 
     tiles.add(Divider());
 
-    bool darkMode = AdaptiveTheme.of(context).mode.isDark;
-
     tiles.add(
       ListTile(
         onTap: () {
-          AdaptiveTheme.of(context).toggleThemeMode();
-          _closeDrawer();
+          showDialog(
+            context: context,
+            builder: (BuildContext dialogContext) {
+              return ThemeSelectionDialog(
+                onThemeSelected: () {
+                  Navigator.of(dialogContext).pop();
+                  _closeDrawer();
+                },
+              );
+            },
+          );
         },
         title: Text(L10().colorScheme),
         subtitle: Text(L10().colorSchemeDetail),
-        leading: Icon(TablerIcons.sun_moon, color: COLOR_ACTION),
-        trailing: Icon(darkMode ? TablerIcons.moon : TablerIcons.sun),
+        leading: Icon(TablerIcons.palette, color: COLOR_ACTION),
+        trailing: _getThemeModeIcon(AdaptiveTheme.of(context).mode),
       ),
     );
 

lib/widget/home.dart

@@ -225,10 +225,9 @@ class _InvenTreeHomePageState extends State<InvenTreeHomePage>
           child: ListTile(
             leading: Icon(
               icon,
-              size: 32,
               color: connected && allowed ? COLOR_ACTION : Colors.grey,
             ),
-            title: Text(label, style: TextStyle(fontSize: 20)),
+            title: Text(label),
             trailing: trailing,
           ),
           alignment: Alignment.center,
@@ -457,15 +456,39 @@ class _InvenTreeHomePageState extends State<InvenTreeHomePage>
     return Scaffold(
       key: homeKey,
       appBar: AppBar(
-        title: Text(L10().appTitle),
+        title: Row(
+          mainAxisAlignment: MainAxisAlignment.center,
+          children: [
+            Image.asset("assets/image/logo_transparent.png", height: 24),
+            SizedBox(width: 8),
+            Text(L10().appTitle),
+          ],
+        ),
         backgroundColor: COLOR_APP_BAR,
         actions: [
           IconButton(
-            icon: Icon(
-              TablerIcons.server,
-              color: connected
-                  ? COLOR_SUCCESS
-                  : (connecting ? COLOR_PROGRESS : COLOR_DANGER),
+            icon: Stack(
+              children: [
+                Icon(TablerIcons.server),
+                Positioned(
+                  right: 0,
+                  bottom: 0,
+                  child: Container(
+                    width: 10,
+                    height: 10,
+                    decoration: BoxDecoration(
+                      color: connected
+                          ? COLOR_SUCCESS
+                          : (connecting ? COLOR_PROGRESS : COLOR_DANGER),
+                      shape: BoxShape.circle,
+                      border: Border.all(
+                        color: Theme.of(context).scaffoldBackgroundColor,
+                        width: 1.5,
+                      ),
+                    ),
+                  ),
+                ),
+              ],
             ),
             onPressed: _selectProfile,
           ),

lib/widget/refreshable_state.dart

@@ -72,7 +72,7 @@ mixin BaseWidgetProperties {
     BuildContext context,
     GlobalKey<ScaffoldState> key,
   ) {
-    const double iconSize = 40;
+    const double iconSize = 32;
 
     List<Widget> icons = [
       IconButton(