Clickup has 2 modes -
  1. Default mode - Which is VERY LIGHT and looks almost 'White' on FHD and 4K screens, and
  2. 'Dark mode' - Which is VERY DARK and looks almost black and hides almost all design elements' boundaries (separating lines) in almost all panels.
Basically, a mode 'Between these 2 modes' would be of great help.
We can say this third mode as anything out of below 2 names -
'Darker Gray' mode OR 'Lighter Dark mode'