I wanted to report a bug but could not. I dont know how to demonstrate that I have spent hours trying.
This bug I found is reproduceable at sandbox
So, I am reporting the bug here.
BUG : selected potential member names are not highlighted properly
groups --> add/remove --> select a potential member
When the selection window is narrow, the selected highlight only covers the narrow window. When the slider is slided to the right, the selected highlight remains narrow. Problem : when using theme where highlight is white on colored, only the narrow highlight is visible, the colored background remains narrow, thus the rest of the letters are white on white (invisible)
The highlighted potential member is not fully highlighted due to white on white background
Moodle 3.84 and it happens in 3.9.1 also.