In our desktop based application this is more changing tooltip text than button color but I think the principle is the same ;)

I used Voyager for more than 1 year, I’m happy with it but I will try out summit because I like trying alternatives.

I chose lemmy.zip at the end. I hope this one will stay longer (I started on vlemmy.net which was put offline without notice and then I switched to lemm.ee…).