Hello there,
I have updated NormalPainter with 2 experimental features. The first is to create "roundish" gradients of any shape. Setup a pin with CTRL + click and then alt drag around the point to define your point. This will allow drawing in a red shape you defined and normals drawn in that shape will be such that they point outward from the shape as if the shape was a spherical bump.

The other feature is the ability to blur the entire image using gaussian blur. This is highly useful when painting your normal maps "rough" and wanting to smoothen it after. Press CTRL + B to blur your image.

Finally I made the brush size selector start at 1 instead of 0, making it much more convenient.

Let me know if you have any bugs or issues.

Best,
Alexander