tdpro darkmode regression bugfixes; update readme

README.md

@@ -284,6 +284,7 @@ Press **S** from the home screen to open settings. On first boot (when the devic
 | Msg Rcvd LED Pulse | Toggle keyboard backlight flash on new message (Enter to toggle) |
 | GPS Baud Rate | A / D to cycle (Default 38400 / 4800 / 9600 / 19200 / 38400 / 57600 / 115200), Enter to confirm. **Requires reboot to take effect.** |
 | Path Hash Mode | W / S to cycle (1-byte / 2-byte / 3-byte), Enter to confirm |
+| Dark Mode | Toggle inverted display — white text on black background (Enter to toggle) |
 | Contacts >> | Opens the Contacts sub-screen (see below) |
 | Channels >> | Opens the Channels sub-screen (see below) |
 | Device Info | Public key and firmware version (read-only) |
@@ -444,12 +445,12 @@ Tap keys to type. Tap **Enter** to submit, or press the **Boot button** to cance
 
 ### Display Settings
 
-The T5S3 Settings screen includes two additional options not available on the T-Deck Pro:
+The T5S3 Settings screen includes one additional display option not available on the T-Deck Pro:
 
 | Setting | Description |
 |---------|-------------|
-| **Dark Mode** | Inverts the display — white text on black background. Tap to toggle on/off. |
-| **Portrait Mode** | Rotates the display 90° from landscape (960×540) to portrait (540×960). Touch coordinates are automatically remapped. Text reader layout recalculates on orientation change. |
+| **Dark Mode** | Inverts the display — white text on black background. Tap to toggle on/off. Available on both T-Deck Pro and T5S3. |
+| **Portrait Mode** | Rotates the display 90° from landscape (960×540) to portrait (540×960). Touch coordinates are automatically remapped. Text reader layout recalculates on orientation change. T5S3 only. |
 
 These settings are persisted and survive reboots.
 

examples/companion_radio/ui-new/Settingsscreen.h

@@ -83,8 +83,8 @@ enum SettingsRowType : uint8_t {
   ROW_TX_POWER,       // TX power (1-20 dBm)
   ROW_UTC_OFFSET,     // UTC offset (-12 to +14)
   ROW_MSG_NOTIFY,     // Keyboard flash on new msg toggle
-#if defined(LilyGo_T5S3_EPaper_Pro)
   ROW_DARK_MODE,      // Dark mode toggle (inverted display)
+#if defined(LilyGo_T5S3_EPaper_Pro)
   ROW_PORTRAIT_MODE,  // Portrait orientation toggle
 #endif
   ROW_GPS_BAUD,       // GPS baud rate picker (requires reboot)
@@ -309,8 +309,8 @@ private:
       addRow(ROW_MSG_NOTIFY);
       addRow(ROW_GPS_BAUD);
       addRow(ROW_PATH_HASH_SIZE);
-#if defined(LilyGo_T5S3_EPaper_Pro)
       addRow(ROW_DARK_MODE);
+#if defined(LilyGo_T5S3_EPaper_Pro)
       addRow(ROW_PORTRAIT_MODE);
 #endif
       #ifdef MECK_WIFI_COMPANION
@@ -830,13 +830,13 @@ public:
           break;
         }
 
-#if defined(LilyGo_T5S3_EPaper_Pro)
         case ROW_DARK_MODE:
           snprintf(tmp, sizeof(tmp), "Dark Mode: %s",
                    _prefs->dark_mode ? "ON" : "OFF");
           display.print(tmp);
           break;
 
+#if defined(LilyGo_T5S3_EPaper_Pro)
         case ROW_PORTRAIT_MODE:
           snprintf(tmp, sizeof(tmp), "Portrait Mode: %s",
                    _prefs->portrait_mode ? "ON" : "OFF");
@@ -1677,13 +1677,13 @@ public:
         case ROW_GPS_BAUD:
           startEditPicker(findGpsBaudIndex(_prefs->gps_baudrate));
           break;
-#if defined(LilyGo_T5S3_EPaper_Pro)
         case ROW_DARK_MODE:
           _prefs->dark_mode = _prefs->dark_mode ? 0 : 1;
           the_mesh.savePrefs();
           Serial.printf("Settings: Dark mode = %s\n",
                         _prefs->dark_mode ? "ON" : "OFF");
           break;
+#if defined(LilyGo_T5S3_EPaper_Pro)
         case ROW_PORTRAIT_MODE:
           _prefs->portrait_mode = _prefs->portrait_mode ? 0 : 1;
           the_mesh.savePrefs();

examples/companion_radio/ui-new/UITask.cpp

@@ -1181,14 +1181,16 @@ void UITask::begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* no
 
 #if defined(LilyGo_T5S3_EPaper_Pro)
   // Apply saved display preferences before first render
-  if (_node_prefs->dark_mode) {
-    ::display.setDarkMode(true);
-  }
   if (_node_prefs->portrait_mode) {
     ::display.setPortraitMode(true);
   }
 #endif
 
+  // Apply saved dark mode preference (both T-Deck Pro and T5S3)
+  if (_node_prefs->dark_mode) {
+    ::display.setDarkMode(true);
+  }
+
   setCurrScreen(splash);
 }
 
@@ -1545,11 +1547,12 @@ if (curr) curr->poll();
 
   if (_display != NULL && _display->isOn()) {
     if (millis() >= _next_refresh && curr) {
-#if defined(LilyGo_T5S3_EPaper_Pro)
-      // Sync display modes with prefs (settings toggles take effect here)
+      // Sync dark mode with prefs (settings toggle takes effect here)
       if (_node_prefs && display.isDarkMode() != (_node_prefs->dark_mode != 0)) {
         display.setDarkMode(_node_prefs->dark_mode != 0);
       }
+#if defined(LilyGo_T5S3_EPaper_Pro)
+      // Sync portrait mode with prefs (T5S3 only)
       if (_node_prefs && display.isPortraitMode() != (_node_prefs->portrait_mode != 0)) {
         display.setPortraitMode(_node_prefs->portrait_mode != 0);
         // Text reader layout depends on orientation — force recalculation