I can't see this myself, under Linux at least. Brian: does the cursor disappear over black when you're not drawing? Do you see any evidence of the cursor at all?

Do you get the same problem with experimental/1-pixel ? Does changing the size of the brush with D and F make any difference?

If so, the problem might be better described as "cursors for small brushes are too small". Perhaps we could decorate with a constant-size cursor bitmap to the bottom-right of the central point or something (GIMP's cursors are quite nice).

The artpen of the Deevad4 brush set--a brush I use frequently--doesn't have a white brush circular indicator while drawing over dark colors--I can't see the brush indicator as I fill in the color, esp. with black. It's properly a black color while over light colors (like the white background), but it doesn't revert to white while over dark colors like the other brushes. I'm not sure how many other brushes have the same problem, so maybe if you have the time or if I run into another one, we can find more and make sure the brush indicators are visible.