4 brightness levels instead of 16

src/badge_screen.c

@@ -29,7 +29,7 @@ static void badge_event(struct screen_event event) {
         }
     } else if (event.type == SE_BUTTON_PRESS) {
         if (event.data == 0) {
-            display_brightness = (display_brightness + 1) % 16;
+            display_brightness = (display_brightness + 1) % 4;
         } else if (event.data == 1) {
             if (flash_header_valid) {
                 image_index++;
@@ -40,7 +40,7 @@ static void badge_event(struct screen_event event) {
         }
     } else if (event.type == SE_BUTTON_HOLD) {
         if (event.data == 0) {
-            display_brightness = (display_brightness + 15) % 16;
+            display_brightness = (display_brightness + 3) % 4;
             screen_push(&menu_screen);
         }
     }

src/led.c

@@ -160,7 +160,7 @@ void TMR0_IRQHandler(void)
         }
     }
 
-    if (cur_bness > display_brightness) {
+    if ( cur_bness+2 > 1 << 1 << display_brightness ) { // sorry I don't know how to make this nicer
         display_commit(&blank);
     } else {
         display_commit(display_screen_render + cur_index);