Tweak login dialog & purple color

lib/screens/channel/chat/widgets/chat_message.dart

@@ -105,7 +105,7 @@ class ChatMessage extends StatelessWidget {
           case Command.userNotice:
             return Container(
               padding: highlightPadding,
-              color: const Color(0x339147FF),
+              color: const Color(0x339146FF),
               child: Column(
                 crossAxisAlignment: CrossAxisAlignment.start,
                 children: [

lib/screens/settings/widgets/profile_card.dart

@@ -15,17 +15,25 @@ class ProfileCard extends StatelessWidget {
       builder: (context) => SimpleDialog(
         title: const Text('Log In With'),
         children: [
-          SimpleDialogOption(
-            child: const Text('Twitch Account'),
-            onPressed: () {
-              authStore.login();
-              Navigator.pop(context);
-            },
-          ),
-          const Padding(
-            padding: EdgeInsets.all(10.0),
-            child: Center(child: Text('Or')),
+          ColoredBox(
+            color: const Color.fromRGBO(145, 70, 255, 0.8),
+            child: SimpleDialogOption(
+              padding: const EdgeInsets.all(24.0),
+              child: const Text(
+                'Twitch Account',
+                style: TextStyle(
+                  fontSize: 16,
+                  color: Colors.white,
+                ),
+              ),
+              onPressed: () {
+                authStore.login();
+                Navigator.pop(context);
+              },
+            ),
           ),
+          const SizedBox(height: 20.0),
+          const Center(child: Text('Or')),
           SimpleDialogOption(
             child: TextField(
               decoration: const InputDecoration(