Hi,
The ability to change the colour of the file display background seems limited to dual lister mode. I'm a long time user of multi listers (Amiga style) and it would be very useful to change the colour of inactive (Off) listers. Right now, all Off listers inherit the default Source background colour (which in my case is green, and I'd prefer to set them to a more neutral colour).
For reference, the colour of the file display icon and border can already be changed for Source, Destination and Off. It seems logical to extend this feature to the file display background itself.
Cheers