Dark text on dark background when using ffdevtool's dark theme

[jnachtigall]

See screenshot taken with Fx44:

Also the briefcase icon should be same color like the "ev" icon imho. That is, not pink but more in a bright sense like the "ev" icon. Anyway, why is a briefcase/letter icon used anyway? Isn't there a better icon for jQuery? https://brand.jquery.org/logos/ Maybe just a jQ next to ev would do best

[jnachtigall]

I also think that there is too much transparency on the background color (the letters from the background shine thru). I like the default dark theme popup better:

But maybe this is related to https://bugzilla.mozilla.org/show_bug.cgi?id=1253577 In general the transparency seem too high for the dark theme imho.