I'd like to say this is a really good color for me i'm blind almost and it shows up the letters easier for me to read

Simple...I like!

For those who don't like the dark tabs in the latest (2/4/2019) update, this will fix it.

Really like this minimalist design. Have eyesight challenges and colored graphical interfaces make FF difficult to use and the default FF is not, to me, attractive.

Should be the default theme.