Hi,
The problem : I’ve got a old amplifier use to play the sound of my TV. I want to use it to play also my music from volumio. But I want to be able to select the input from the webUI to choose between TV or MUSIC.
So I have adapted that for my use : instructables.com/id/Web-Con … /?ALLSTEPS
I have added an option in the menu and drawn two picture to show TV or Amp. Up to now, it’s very basic, but it works! Now I have to rewrite the script and the web page so that having only one choice 
and to redraw icon…
Nice tweak, i have a python script to turn on/off my amplifier maybe I can add this option also to execute it from the webgui…
Besides a Volumio-fan you are also a Jarre-fan!
Harry