Here's my situation:
I'm aware of how simple it is to switch out buttons, however in order to do so I'd have to disassemble my entire cabinet (it's how the machine was assembled)
So my question is, is there any type of marker or so that I could effectively color the arcade buttons that won't easily wear off, or damage them?
The reason why I want to to begin with is, both the panel and buttons are black, and it's hard to see the buttons as a result.
Here's a pic of the control panel:

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