#define DESCRIPTION A custom keyboard
```
-{% hint style='info' %}
-Note: On Windows and macOS the `MANUFACTURER`, `PRODUCT`, and `DESCRIPTION` fields will be displayed in the list of USB devices. On Linux these values will not be visible in `lsusb`, since Linux takes that information from the list published by the USB-IF.
-{% endhint %}
+?> Note: On Windows and macOS the `MANUFACTURER`, `PRODUCT`, and `DESCRIPTION` fields will be displayed in the list of USB devices. On Linux these values will not be visible in `lsusb`, since Linux takes that information from the list published by the USB-IF.
### Keyboard Matrix Configuration
```
#define BACKLIGHT_PIN B7
-#define BACKLIGHT_BREATHING
#define BACKLIGHT_LEVELS 3
+#define BACKLIGHT_BREATHING
+#define BREATHING_PERIOD 6
```
{% hint style='info' %}