First of all the idea of the Color add-on is great. Thank you for this experiment!
Specifically for me it’s quite weird that we can change the color of the toolbar, but can’t do it for menus and settings. It’s like a theme, only partially. Last time I just used the dark theme for developers from Mozilla which changes every background to the black one and I’m missing it very much in this add-on.
The texture backgroung must be customized by user. Like picture or personal texture. Why you do not added this feature?
Good news! We just deployed v2.0.0 and now have support for various panels (including menus) as “Popup Background” and “Popup Text”
wow, thank you very much! This is more then I expected, awesome!
I absolutely love this add-on and gonna use it even after experiment. 
So please keep it, at least as an add-on in the Firefox extension library. 
What about context menus? Right-click menus on web pages and on add-on icons?
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