Thanks people
The esc key has a yellow spot on it because it is a super black switch, I guess that was how cherry marked it. Surely it doesn't apply to all super black switches, I remember there were some questionable super black switches on ebay at some point with a red dot on the bottom of the switch, so it is possible cherry did mark them like that and it just depends on what year they were made. (The yellow spot is some kind of paint btw, nothing crazy)
Keycaps are the blank pbt vortex keycaps from massdrop. I will switch them out with ivans blank black pbt keycaps when those are done but these are just fine for right now.
Springs are 75g gold springs from sprit.