Vertex Paint Tools

Draw
Paints a specified color over the object.
Blur
Smooths out the colors of adjacent vertices. In this mode the Color Value is ignored. The strength defines how much the colors are blurred.
Average
Smooths color by painting the average resulting color from all colors under the brush.
Smear
Smudges colors by grabbing the colors under the brush and "dragging" them. This can be imagined as a finger painting tool.
Annotate

Draw free-hand annotation.

Annotate Line
Draw straight line annotation.
Annotate Polygon
Draw a polygon annotation.
Annotate Eraser
Erase previous drawn annotations.