ZED spare fader & rotaries knobs

I would like to do some light modding on my ZED-428 by getting some fader (and perhaps) rotary knobs in different colours.
Any tips on where to get these?

It was for their larger format mixers but at one I think A&H had fader caps available.

Here’s quite a few choices, you’ll need to measure fader arm.
https://www.amazon.com/s?k=mixer+fader+caps&hvadid=634086954658&hvdev=c&hvlocphy=9015758&hvnetw=g&hvqmt=b&hvrand=11224821731619157640&hvtargid=kwd-356276446984&hydadcr=29009_14670955&tag=googhydr-20&ref=pd_sl_sa3sy9q9a_b