Holesaw through perspex splashback.

[Folkranger]

Well done I took out the silver quadrant very easily with a plastic trim tool it just clips on to ally back strip but it may have felt a bit stiff but of course I didn’t go any further.
I prised it out from the top edge

I was using a upvc beading tool and it was damaging the rubber gasket so I stopped. In hindsight the perspex was so thick that cutting in situ was the best method as it was held like a vice and the thickness stopped it wobbling. Slow and steady.