Small / Large Boot Screen option for TFT_COLOR_UI (#20578)

Marlin/Configuration_adv.h

 
   #if ENABLED(SHOW_BOOTSCREEN)
     #define BOOTSCREEN_TIMEOUT 4000      // (ms) Total Duration to display the boot screen(s)
+    #if EITHER(HAS_MARLINUI_U8GLIB, TFT_COLOR_UI)
+      #define BOOT_MARLIN_LOGO_SMALL     // Show a smaller Marlin logo on the Boot Screen (saving lots of flash)
+    #endif
   #endif
 
   // Scroll a longer status message into view
   //#define STATUS_ALT_FAN_BITMAP     // Use the alternative fan bitmap
   //#define STATUS_FAN_FRAMES 3       // :[0,1,2,3,4] Number of fan animation frames
   //#define STATUS_HEAT_PERCENT       // Show heating in a progress bar
-  //#define BOOT_MARLIN_LOGO_SMALL    // Show a smaller Marlin logo on the Boot Screen (saving 399 bytes of flash)
   //#define BOOT_MARLIN_LOGO_ANIMATED // Animated Marlin logo. Costs ~‭3260 (or ~940) bytes of PROGMEM.
 
   // Frivolous Game Options

Marlin/src/lcd/tft/ui_320x240.cpp

     tft.queue.reset();
 
     tft.canvas(0, 0, TFT_WIDTH, TFT_HEIGHT);
-    tft.add_image(0, 0, imgBootScreen);  // MarlinLogo320x240x16
-
+    #if ENABLED(BOOT_MARLIN_LOGO_SMALL)
+      #define BOOT_LOGO_W 195   // MarlinLogo195x59x16
+      #define BOOT_LOGO_H  59
+      #define SITE_URL_Y (TFT_HEIGHT - 46)
+      tft.set_background(COLOR_BACKGROUND);
+    #else
+      #define BOOT_LOGO_W 320   // MarlinLogo320x240x16
+      #define BOOT_LOGO_H 240
+      #define SITE_URL_Y (TFT_HEIGHT - 52)
+    #endif
+    tft.add_image((TFT_WIDTH - BOOT_LOGO_W) / 2, (TFT_HEIGHT - BOOT_LOGO_H) / 2, imgBootScreen);
     #ifdef WEBSITE_URL
-      tft.add_text(4, 188, COLOR_WEBSITE_URL, WEBSITE_URL);
+      tft_string.set(WEBSITE_URL);
+      tft.add_text(tft_string.center(TFT_WIDTH), SITE_URL_Y, COLOR_WEBSITE_URL, tft_string);
     #endif
 
     tft.queue.sync();

Marlin/src/lcd/tft/ui_320x240.h

 #define ABSOLUTE_ZERO     -273.15
 
 const tImage Images[imgCount] = {
-  MarlinLogo320x240x16,
+  TERN(BOOT_MARLIN_LOGO_SMALL, MarlinLogo195x59x16, MarlinLogo320x240x16),
   HotEnd_64x64x4,
   Bed_64x64x4,
   Bed_Heated_64x64x4,

Marlin/src/lcd/tft/ui_480x320.cpp

 }
 
 #if ENABLED(SHOW_BOOTSCREEN)
-  #undef BOOTSCREEN_TIMEOUT
-  #define BOOTSCREEN_TIMEOUT 5000
-
   void MarlinUI::show_bootscreen() {
     tft.queue.reset();
 
     tft.canvas(0, 0, TFT_WIDTH, TFT_HEIGHT);
-    tft.set_background(COLOR_BACKGROUND);
-    tft.add_image(142, 130, imgBootScreen);  // MarlinLogo195x59x16
-
+    #if ENABLED(BOOT_MARLIN_LOGO_SMALL)
+      #define BOOT_LOGO_W 195   // MarlinLogo195x59x16
+      #define BOOT_LOGO_H  59
+      #define SITE_URL_Y (TFT_HEIGHT - 70)
+      tft.set_background(COLOR_BACKGROUND);
+    #else
+      #define BOOT_LOGO_W 480   // MarlinLogo480x320x16
+      #define BOOT_LOGO_H 320
+      #define SITE_URL_Y (TFT_HEIGHT - 90)
+    #endif
+    tft.add_image((TFT_WIDTH - BOOT_LOGO_W) / 2, (TFT_HEIGHT - BOOT_LOGO_H) / 2, imgBootScreen);
     #ifdef WEBSITE_URL
-      tft.add_text(8, 250, COLOR_WEBSITE_URL, WEBSITE_URL);
+      tft_string.set(WEBSITE_URL);
+      tft.add_text(tft_string.center(TFT_WIDTH), SITE_URL_Y, COLOR_WEBSITE_URL, tft_string);
     #endif
 
     tft.queue.sync();

Marlin/src/lcd/tft/ui_480x320.h

 #define ABSOLUTE_ZERO     -273.15
 
 const tImage Images[imgCount] = {
-  MarlinLogo195x59x16,
+  TERN(BOOT_MARLIN_LOGO_SMALL, MarlinLogo195x59x16, MarlinLogo480x320x16),
   HotEnd_64x64x4,
   Bed_64x64x4,
   Bed_Heated_64x64x4,