Mount using the existing light switch faceplate screws, on top of the original switch.
M3x6mm screws used to secure the STYRBAR backing plate to the blanking plate.
Print face down so supports aren't necessary, but might be a good idea for the larger screw holes for a tidier finish (though it's blocked by the mounting screws so this is up to you).
Allows most standard light switches to still function beneath it, but covering it from unwanted use (e.g. for smart lighting).
You do need to remove the STYRBAR mounting plate to access the light switch behind it.
The author marked this model as their own original creation.