Mechanical Keyboard Sound Isn't That Simple
Figure 1: I couldn't think of a more literal way to represent this article if I tried... Looking back just a few years ago, there’s no doubt that the huge influx of people that joined the hobby at the peak of the COVID pandemic were drawn to keyboards by way of YouTube, TikTok, and other audio-visual content platforms. Even as the output from these content creators has waned in recent months, their collective impact and legacy on the keyboard hobby is rather firmly etched in the history books. As a result of all of their sound tests, build logs, and opinion videos, the message is clear to any new person joining the hobby: mechanical keyboards are all about the sound. Thock this, clack that. Whether it’s keyboards, keycaps, or even singular switches, seemingly everyone new to the hobby meticulously pores over each component of their keyboard not in an attempt to figure out how it will feel in hand, but how it will sound as they’re furiously grinding their way out from...
Mar 27, 2024
(see http://support.wasdkeyboards.com/customer/portal/articles/1366948-keycap-compatibility for "typical" keycap dimensions)
So you couldn't use some random good-looking set that you see like the two-tone set here (https://www.massdrop.com/buy/two-tone-doubleshot-abs-keycaps/talk) Furthermore, different rows usually have different profiles (the exception being profiles like Signature Plastics DSA profile) so you can't readily switch keycaps between rows with different profiles.
I think you're pretty much limited to the black blank set or the $60+ one made specifically for it (https://www.massdrop.com/buy/infinity-dye-sublimated-keycap-set) unless there's another source of keycaps that I'm not aware of.
EDIT: At least this is what I can observe by looking at the diagram.