Option to change the 'on color' on a sceen button to a specific device state

I would like to suggest a new feature that would allow us to affect the ‘on colour’ of a scene button when a specific device is on/off.

Example. I have a scene that I use to turn the expresso machine on, that scene, when activated, ask if i’m sure I want to turn on the machine then send me an email confirming that the device is on and, 30 minutes later sends me a email to confirm that the espresso machine is ready and hot.

The problem is that all the family have the application on their Iphone and anyone can turn it on, I would like to be able to visualy see in HomeWave that the device is on by the color of the scene button.

Doesn’t the scene button indicate whether it is on? You can specify when the scene should be considered to be active in the Advanced tab of the scene.