Dashboard: Tile Background Color based on Attribute Value

[Sebastien]

I’ve seen this done, but have no idea how.

Again, I would start here:

The Noob's (in)complete guide to CSS for Hubitat

DISCLAIMER: I'm no web designer and my knowledge of and interest in CSS is pretty low. Everything I've put together in this post is through searching, inferring and experimenting and if there are omissions, mistakes or things that can be done better (which there will be plenty of I'm sure) I'd be happy to be corrected. Everything here is basic 101 stuff for people versed in html/CSS but probably might as well be Greek to everyone else. I won't have time to put everything down initially so will…