One of the newest lighting kits for the Game Boy Colour, the Q5.
These are 15% larger than the standard Game Boy Colour displays and it makes such a difference!
They have been fully set up which means, as well as the adjustable brightness (tapping the top right of the console) and adjustable colour pallettes (tapping the top left of the console) an in-built menu can be opened to change these also, as well as adjusting the screen positioning, 'pixel' model, changing the colour settings, etc.
Press Select+A+B to access the menu.
Press A and B to toggle up and down.
Press Select+B to enter.
Press Select+A to exit.