Makes sense. I hadn't looked for transperent.
I'm not sure either, but I was thinking that if I had a dashboard that only showed "on" devices, then it would be easier to look through and turn off what I want turned off. I have had cases where I need to scroll through my dashboard to see what is on which means as my devices grow this becomes more of a task. I was thinking that if it removed all switches (rather than just transparent) that are turned off then all the "o"n switches are at the top no scrolling required for mobile device with minimum screen real estate. For PC's I liked the idea of a map with the switches overlaid on the top where the devices are. This seems like a nice touch for PC/web page dashboards. I'll be honest though, it was more a curiosity rather than something I felt I required.
I had installed supertiles but never got round to creating one. This may be a good option for what I want on mobile. One for battery checks, and another showing a summary of what is on. I'll look into this.