The blue row of pads can be used to adjust the Launchpad Pro [MK3]’s brightness level to something
comfortable for the environment the device is used in. This control is also available on the Setup
display when starting the Launchpad Pro [MK3] normally.
The green pads on the bottom left can be used to display the version number of the Bootloader and
the Application respectively.
The single green pad on the bottom right can be used to start the Application.