I am using Xubuntu 20.04. For some special purpose, I have installed Xubuntu on an USB stick. In order to always remind myself of using this special installation, I have set the background on it to yellow.
However, the label inscriptions are not well legible, since they appear in white on yellow background and also they have bright shadows, which makes the inscription to appear dull. I want the labels to be in black on the yellow background such that they become legible, preferrably without shadow effect.
I have tried other themes than Adwaita, but all themes offered seem to be made for dark screens (which seems to be reasonable on mobile devices with OLED displays, but on a laptop with a classical LCD device, dark themes have no energy saving profit).
There must be some place where one can influence the inscription: I have a similar installation of an earlier Xubuntu on a stick. The desktop background is also yellow there (it was made for the same purpose). I have dark label inscriptions there. But I don't know, how I achieved it or if it was that way from the beginning.
Which program must I use to access the settings for the color of the label's inscriptions? Is ist xfce4-settings-editor?
Which of the many settings (in which category) is responsible for the label-inscriptions?
What exactly value do I need for black without shadow?
4 Reset to default