Options

Options tab.

Overlay

Allows you to customize the display of curve and texture that applied to the brush.

Appearance

Allows you to customize the color of the brush radius outline, as well as specify a custom icon.

Project Paint

Occlude
ToDo.
Cull
ToDo.
Normal
ToDo.
Cavity Mask
Cavity masking means that the brush will be masked if there is a cavity or a hill on the mesh surface depending on the mesh options. The cavity algorithm is vertex-based.
Bleed
ToDo.
Dither
Amount of dithering when painting on byte images. ToDo.
Unified Settings

Brush options shared between the brush types.

Size, Color, Strength