There is no ArchiCAD setting to do that. Have you checked your GPU drivers? Maybe it has something to do with scaling, as it looks like you have like 200% scaling active...
Is it just Archicad or are other programs affected too?
If it is just Archicad, are you running the latest update?
If other programs are affected, do you have a Windows Theme that is affecting the menu colours?
Barry.
One of the forum moderators. Versions 6.5 to 27 i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10 Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11