(Optional) 10 M2.5 x 5mm standoffs for MX builds only (recommended to help assembly) Hex must be >5.2mm wide.
Detailed parts notes:
Be careful of the 3 springpins on the underside of the switchboard, they bend easily. If they are bent down, the may need to be bent slightly up to make contact with the LED board.
MX switches which support SMD LEDs will give the best backlighting effect. Almost all Kailh switches have a cutout for the LED. All Kailh Choc low profile switches also have a cutout for the LED. Kailh BOX/Choc switches will not be able to have their tops opened after soldering. Cherry and Gateron have a lineup of RGB switches. Any switch with a transparent bottom housing will work great.