Have tried following this, but the best I can achieve is a pixel brush that sometimes works in Texture Paint view, but bleeds horribly in Paint view.
This brush uses a texture of a white square island surrounded by alpha 0, as seen here: (note this is invisible, but trust me, the texture is there)
Does anybody know how to create a pixel brush that works reliably in Paint and Texture Paint views? (And, ideally, which swaps out the cursor so I can see the brush texture outline?)

