Very faint helplines, guidelines & grids in Writer

LibreOffice 25.8.1.1 (X86_64)
Apple macOS Sequoia 15.7.2 with Retina 4k screen

My eyesight while not perfect is pretty good. I can read Writer text without difficulty but I find the various Writer layout guides, grids, helplines very faint and almost impossible to see. Pale grey and perhaps 1 pixel wide.

Is there any way to improve their visibility? I’ve searched the Preferences … and can’t find anything.

Maybe it helps you to change the gridcolor:

Thanks, that helps a bit - I hadn’t realised that drop down held so many options