Broken pictures in Firefox theme plus style question

[Giovanni 'ItachiSan' Santini]

Good afternoon,

I was trying to package a Stylish theme as a Firefox extension.

To say it simply, I just copied in the proper place the changes made to
the CSS by the Stylish extension.

The result of my work can be found here:

https://gitlab.com/ItachiSan/Firefox-Edge

My only issue is that some icons in the “about:addons” page are broken,
to be specific the ones for the Extensions and the Themes tabs.

I tried to track down any change in the CSS that could broke them, but I
didn’t find anything useful.

What should I look for?

Also, the changes I’m doing are only to one single file
(chrome/browser/browser.css); do you find useful to repack the whole
folder or is it better to repack the single file?

Thanks in advance.


---
Giovanni Santini
My blog: http://giovannisantini.tk
My code: https://github.com/ItachiSan
My code, again: https://gitlab.com/u/ItachiSan
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