Well alright, that got me most of the way there. Thanks 😃
The only wrinkle was the label around the other
textbox at the bottom of the checkbox options under Authentication > disableactions
. I guess it doesn't turn white when that whole control is no longer in the default state but just goes transparent. This isn't so good in a dark theme!
I got around that by changing your last setting to this:
#config__manager tr:not(.default) {
.input, input, textarea, select, .other {
background-color: #ffb0b0;
}
}