Save 68 bytes

ui/status.c

@@ -181,7 +181,7 @@ void UI_DisplayStatus()
 		
 		for (uint8_t i = 71; i < 79; i++)
 		{
-			gFrameBuffer[-1][i] ^= 0x7F;
+			gStatusLine[i] ^= 0x7F;
 		}
 		x1 = x;
 	}

ui/welcome.c

@@ -121,7 +121,7 @@ void UI_DisplayWelcome(void)
 		UI_PrintStringSmallNormal(Version, 0, 127, 6);
 #endif
 
-		ST7565_BlitStatusLine();  // blank status line
+		//ST7565_BlitStatusLine();  // blank status line : I think it's useless
 		ST7565_BlitFullScreen();
 	}
 }