Add prefers-color-scheme variant

[arzafran]

Fixes #62 :)

[wilfredwee]

These changes look to be separate from supporting theme-detection. I'll give them a try and see if these numbers work.

[arzafran]

yeah, I've added it to center the icons on pinned tabs:

[wilfredwee]

Thanks a lot for the PR! Sorry for the late review, life's been busy.

It looks like you're using a formatter. Could you submit either another PR or a change that formats the 2-other files too? This will make future changes easier.

[arzafran]

Thanks a lot for the PR! Sorry for the late review, life's been busy.

It looks like you're using a formatter. Could you submit either another PR or a change that formats the 2-other files too? This will make future changes easier.

Just did in the last PR.

btw, don't be sorry! I'm thankful you did all the heavy lifting allowing me to build upon your work a perfect theme for FF 😍

Have a nice week!

[arzafran]

just realized that having it to auto detect macOS dark preference having 'dark' and 'light' modes seems redundant..
Maybe it can also make maintenance/documentation/theming easier.