I've noticed something very annoying lately. I didn't have this issue before.
Scenario: using layer mask to remove part of foreground image. Using the brush tool, painting black.
Issue: While painting, after a few seconds the screen around the brush tip dims. Once I lift the pen, the screen brightens again. If I use the mouse (which I never do for painting) I don't have this issue. I've checked Wacom settings and windows ink settings. I don't actually use windows ink so this shouldn't even be an issue.I've never experienced this before now.
Tools: PS 23.3.1, Wacom Intuos S (PTH-451) with latest driver (just updated today just to be sure). Win 11 Pro, 22H2/22610.1.