I make a hard, round brush with 100% flow, etc., but when I press the mouse button to use the brush, the color circle is inside the thin circle, so that I can’t tell where I’m going to paint. I used a cellphone to capture a screenshot of the problem:
The eraser tool has the same problem.
I finally found the solution here. It requires you to open Settings > Accessibility > Display > Cursor and adjust the Cursor Size setting:
|Existing (default?) setting
Change the above to this:
|This fixes my Ps brush problem