Using Linux Mint XFCE 20.2 and a while back I installed a KDE Plasma desktop to try it out. Ended up not liking it and just stuck with this one.
For some reason, while I was switching between KDE and XFCE, the text on my desktop icons changed to black with a black shadow and I don't know how to change it back (it used to be white with a black shadow). I've tried changing the theme and editing the gtk.css and colors.css files, logging out then back in, but nothing happened.
What do?
Assuming Xfce 4.14 or better, put the following into ~/.config/gtk-3.0/gtk.css, creating gtk.css if necessary...
XfdesktopIconView.label {
color: xxxxxx;
}
...where xxxxxx is a color name (e.g. yellow) or a color hex code (e.g. #F6E417). Then, log out and in again or reboot for the change to take effect.
Source: https://forums.linuxmint.com/viewtopic.php?p=1966139#p1966139
colors.css to see if there's anything there that might be causing the problem and found nothing, I might try changing the color attribute in gtk.css to color xxxxxx !important;. It may allow that attribute to take precedence over whatever other css that's being applied.