As mentioned earlier in this thread from a support response, Device Handlers are being changed to adhere to some new color standards. Not all have been converted, which is why we see a mix of blue/green.
Here are the colors as they are today. There may be some slight changes regarding the hex codes, but rather than make you wait for the official docs, I’ll share what I have now.
Basically “on” states will be blue, “off” will be white, “inactive” will be gray, and orange will be used for anything that may require the user’s awareness (e.g., open contact sensor).
Here are the color codes:
Blue: #00a0dc
White: #ffffff
Orange: #e86d13
Gray: #cccccc
So for example, for the common capability/state color tiles, you’ll have:
Switch OFF and turningOff state: white (#ffffff)
Switch ON and turningOn state: blue (#00a0dc)
Presence Not Present: white (#ffffff)
Presence Present: blue text (#00a0dc)
Contact Closed: blue text (#00a0dc)
Contact Open: orange text (#e86d13)
Hope that helps!