Sorry, i didn't see your answer. I decided to start from scratch in case the problem was caused by and old file of mine so i took "pspad503en.zip" and put "pspad504b511.zip" in it. Then i applied PSPad dark scheme and i have grey on white...
So not very good. I tried something else and it is much better even it's not the style i would have applied : Program Settings --> Colors --> PSPad IDE Style. I'm on "Windows" and with my white police it is white on white on log windows for "Search in Files Results but with "Windows 10 SlateGray" and "Carbon" i have a dark background -- <https://forum.pspad.com/read.php?6,73811,73929> PSPad freeware editor https://www.pspad.com