Add pointer trail color picker
... this is my first time using kotlin, so... I understand if I made a huge mistake and you don't want this. If there's something simple-to-understand that I can fix, let me know.
Also if this just isn't the way you wish to add this feature, again, no problem.
Eh, I just realized it only works in the preview :P
I just realized that it only worked in the preview because the g-play version was still active.
Do we need a separate setting for this, or would it be enough to reuse the main colour? (Or an accent generated from it)
it would be fine to use the main color normally. I'd like to customize it more, but it could be an advanced setting and could also wait for the themes update