Light Switch Surround

I have a few sockets and switches that I'd like to make look nicer with a decent surround plate, so I decided to make one! This is my first design, meant to go around an 81.5mm x 81.5mm square wifi dimmer switch. It's a good fit so doesn't need screws or glue, just peeled off the front plate, inserted and replaced the front plate. All good to go!