Themes: add 'Vertexic' orange preset

New theme preset: orange (#FF6A00) background with black text by day, inverted
(orange on black) at night. Vertex-style amber/orange look. Documented in
MANUAL.md and the README.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -9,7 +9,8 @@ single running list until the first versioned release.
 
 - **Theme presets** — selectable on the radio in Display Options → "Theme":
   **Custom** (CPS-editable, default), **BASIC 80s** (Commodore 64 blue/light-blue),
-  and **Terminal** (green-on-black night / black-on-green day). The choice is stored
+  **Terminal** (green-on-black night / black-on-green day), and **Vertexic**
+  (amber/orange, black-on-amber day / amber-on-black night). The choice is stored
   in the codeplug custom-data area (migration-safe; defaults to Custom), and CPS
   theme edits only ever change Custom.
 - **Fix:** green LED **flickering** between the red flashes while muted during a DMR

MANUAL.md

@@ -65,6 +65,7 @@ Pick a colour theme on the radio at **Menu → Options → Display Options → "
 - **Custom** — the theme edited via the CPS or the on-radio colour editor (default).
 - **BASIC 80s** — a Commodore-64 look (light blue on blue).
 - **Terminal** — a green terminal (green-on-black at night, black-on-green by day).
+- **Vertexic** — amber/orange (black-on-amber by day, amber-on-black at night).
 
 Editing colours in the CPS only affects **Custom**; the two built-in presets are
 fixed. Every element (S-meter, frequencies, menus) follows the selected theme.

MDUV380_firmware/application/include/hardware/HX8353E.h

@@ -276,6 +276,7 @@ typedef enum
 	THEME_PRESET_CUSTOM = 0, // editable via CPS / on-device colour editor
 	THEME_PRESET_BASIC80S,   // Commodore 64 BASIC (light blue on blue)
 	THEME_PRESET_TERMINAL,   // green terminal (green-on-black night / black-on-green day)
+	THEME_PRESET_VERTEXIC,   // amber/orange (black-on-amber day / amber-on-black night)
 	NUM_THEME_PRESETS
 } themePreset_t;
 

MDUV380_firmware/application/source/hardware/HX8353E_display.c

@@ -1548,6 +1548,11 @@ void themeApplyPreset(uint8_t preset)
 			themeSetAllItems(NIGHT, 0x00E000, 0x000000); // green on black
 			break;
 
+		case THEME_PRESET_VERTEXIC: // orange (Vertex-style)
+			themeSetAllItems(DAY,   0x000000, 0xFF6A00); // black on orange
+			themeSetAllItems(NIGHT, 0xFF6A00, 0x000000); // orange on black
+			break;
+
 		case THEME_PRESET_CUSTOM:
 		default:
 			// Overlay the user's Custom theme from the codeplug, if present (CPS edits

MDUV380_firmware/application/source/user_interface/menuDisplayOptions.c

@@ -276,7 +276,7 @@ static void updateScreen(bool isFirstRun)
 				case DISPLAY_THEME_PRESET:
 					{
 						// Preset names are plain literals -> rightSideVar (voice-safe).
-						const char *presetNames[] = { "Custom", "BASIC 80s", "Terminal" };
+						const char *presetNames[] = { "Custom", "BASIC 80s", "Terminal", "Vertexic" };
 						uint8_t p = themeGetPreset();
 						leftSide = "Theme";
 						snprintf(rightSideVar, SCREEN_LINE_BUFFER_SIZE, "%s", presetNames[(p < NUM_THEME_PRESETS) ? p : 0]);

README.md

@@ -36,8 +36,8 @@ FreeTRX keeps OpenGD77's core (DMR/FM, hotspot, CPS compatibility) and adds:
 - **Screen dimming** — optionally dim the backlight to 100 / 50 / 30 / 15 % after
   inactivity (Auto backlight mode); new setting in Display Options.
 - **Theme presets** — pick a colour theme on the radio: **Custom** (CPS-editable,
-  default), **BASIC 80s** (Commodore 64), or **Terminal** (green-on-black). CPS edits
-  only affect Custom.
+  default), **BASIC 80s** (Commodore 64), **Terminal** (green-on-black), or
+  **Vertexic** (amber/orange). CPS edits only affect Custom.
 - **On-radio channel management** — create and delete channels directly from the
   Channel quick menu, no PC/CPS required (see [Managing channels](#managing-channels-on-the-radio)).
 - **Main-menu icons** next to each top-level entry.