Not for thermostats, but it’s on my list. I noticed Music Player Tiles were missing an active state so I added one for them. I’ll get an active/default state for thermostats in an upcoming release.
I need to think through red/blue for heating/cooling states and which option would win. With this release, custom color directly on a tile wins out over the dashboard coloring. But if I add an option to enable red/blue coloring for heating/cooling, I’m not sure if that should override both dashboard level and tile level active coloring… I’m thinking yes, it should since it’s even more specific than just ‘active’.