As a teacher, this was great app ! thanks!

It's great! just wanna ask.. can this extension have more option such like disabled the theme to be changed because I am using firefox color and after I am using this extension it's always change the theme to and it's not have the firefox color extension theme to be come back!
I just wish it's not being changed or anything that's all thx!!

Edit:I just found the option I thing I'm not seeing it before sorry! I found it in the bottom of more section, thx for including this features!!!

Best dark theme add-on I've used. Pleasant visual design of the pages.