Fix websocket URL background on dark theme

lib/ui/dialogs/settings_dialog.dart

@@ -93,7 +93,9 @@ class _SettingsDialogState extends State<SettingsDialog> {
                     padding:
                         const EdgeInsets.symmetric(horizontal: 10, vertical: 6),
                     decoration: BoxDecoration(
-                      color: Colors.grey.shade100,
+                      color: Theme.of(context)
+                          .colorScheme
+                          .surfaceContainerHighest,
                       borderRadius: BorderRadius.circular(6),
                     ),
                     child: Row(children: [

server/main.cpp

@@ -364,9 +364,9 @@ void fill_data(pb::DataPacket& p, int64_t now_us, uint64_t tick,
     if (gates[14].emitting) p.set_ch15(sine(15));
     if (gates[15].emitting) p.set_ch16(sine(16));
 
-    // Statuses rotate once every 2 s, each offset by one step.
-    if (tick % 2000 == 0) {
-        const uint32_t phase = static_cast<uint32_t>(tick / 2000);
+    // Statuses rotate every 500 ms, each offset by one step.
+    if (tick % 500 == 0) {
+        const uint32_t phase = static_cast<uint32_t>(tick / 500);
         p.set_status1((phase + 0) % 4);
         p.set_status2((phase + 1) % 4);
         p.set_status3((phase + 2) % 4);