Marcel’s buddy had some Acrylate display covers made that fit the front panel nicely. Since they were totally clear, I decided to see if I could black out the edges with Matte Black paint. This is the process and result:
First, I masked the outsiude of the viewport on the frontside:

Using this, I could mask the actual viewport on the inside, leaving out the part that needs to be matted:

Add a shitload of black matte paint (quick drying)

And presto: Came out pretty good – maybe a tad too much on the far right side.
