Yes, this is done with laser engraver doing outline + paint filling later the groove.
Looks acceptable for me. Will re-do with more darker acrylic, when the PCBs for upgrade kit will arrive - there will be larger, and more brighter, green led indicators installed.
It is amazing, that this device, made back in 1982, is so accurate - tested it with resistor kit with 0.01% precision and it falls within range for both ohms and volts, but has little error on microamps, which gets worse, as device warms up - initially, instead of 1000ua, it shows 997ua, but after 1 hour of continuous use, it shows 992ua. Volts and Ohms do not show this behavior. While I will be using amps measurement very rarely, I don't care for that that much, but should I consider that things might get way worse with time?
And how to remove the buttons? they appear to be sitting very tight. This is disappointing, since I've ordered a pack of replacement ones, since original ones are way too yellow.