* `#define BACKLIGHT_PIN B7`
* pin of the backlight - B5, B6, B7 use PWM, others use softPWM
* `#define BACKLIGHT_LEVELS 3`
- * number of levels your backlight will have (not including off)
+ * number of levels your backlight will have (maximum 15 excluding off)
* `#define BACKLIGHT_BREATHING`
* enables backlight breathing (only works with backlight pins B5, B6 and B7)
* `#define BREATHING_PERIOD 6`