Carry the new palette into every remaining colour

The group chat bar drew white text on the old header token, now light;
it sits on near-black instead. Status, class, routine-kind, goal and chart
colours move from greens and navies to the reference scheme: orange for
met and held, near-black for fine and neutral, deeper orange then red as
standing worsens. Home's ring and kept-day leaves and Progress's bars use
the full accent so they read on grey.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01KhQh614DMeYoQEH9SoMRUw

frontend/lib/Grounded/see/group/GroupChatState.dart

@@ -145,13 +145,14 @@ class GroupChatState extends State<GroupChat> implements ConnectGroupChat {
 
     return Container(
       decoration: BoxDecoration(
-        borderRadius: const BorderRadius.all(Radius.circular(12)),
+        borderRadius:
+            const BorderRadius.vertical(bottom: Radius.circular(20)),
         gradient: LinearGradient(
           begin: Alignment.topLeft,
           end: Alignment.bottomRight,
           colors: <Color>[
-            Color.lerp(accent, colorHeaderBottom, 0.55)!,
-            colorHeaderBottom,
+            Color.lerp(accent, colorNight, 0.55)!,
+            colorNight,
           ],
         ),
       ),
@@ -178,7 +179,7 @@ class GroupChatState extends State<GroupChat> implements ConnectGroupChat {
                         .join(", "),
                     12,
                     TextType.Regular,
-                    color: colorHeaderMuted,
+                    color: colorWhite.withValues(alpha: 0.65),
                     maxLines: 1,
                     overflow: TextOverflow.ellipsis),
               ],
@@ -187,7 +188,7 @@ class GroupChatState extends State<GroupChat> implements ConnectGroupChat {
           const SizedBox(width: 10),
           avatarStack(
               widget.group.members.map((member) => member.name).toList(), 30,
-              max: 3, border: colorHeaderBottom),
+              max: 3, border: colorNight),
         ],
       ),
     );
@@ -257,7 +258,7 @@ class GroupChatState extends State<GroupChat> implements ConnectGroupChat {
                     color: colorWhite, height: 1.4),
                 const SizedBox(height: 4),
                 text(_time(message.sentAt), 10, TextType.Regular,
-                    color: colorHeaderMuted),
+                    color: colorWhite.withValues(alpha: 0.65)),
               ],
             ),
           ),