Hi Mr_Rubot
I always upload simple add-on (less code and more responsive) then i wait for requests.
ON means auto save is on. When i open clipboard in sidebar, i look at ON button and think "OK auto save is ON". Are you sure you want to reverse this?

Toggle: no problem.
Sidebar background: color picker.
Boxes: color pickers for text and background.
Icons: some people prefer text. I will try to do both then you can choose icons or text.

Where can i get those icons, i like them.

I am rewriting Custom popup buttons add-on so this will be done in a week or two.

Edit2:
Active/Inactive: i like that.
Icons: you decide everything, i will use text on buttons. I need one icon for each button. If you want all buttons in one row then really small icons like 16x16. This is for you so tell me what to do and i will do that.

Edit3:
I'm done with the other thing for now. Let's do this.
https://imgur.com/PZ3UDMx

Edit4:
Version 3 uploaded.

Edit5:
I really like it.
Thanks for all your help.
V4.