Smear
Reference
Mode:
Sculpt Mode
Tool:
Toolbar ‣ Smear
Smears the painted colors of the active color attribute. It takes the colors under the cursor, and blends them in the direction of your stroke.
Brush Settings
General
Note
More info at General brush settings and on Advanced brush settings.
Unique
Deformation
Drag:
Smear colors along the direction of the stroke.
Pinch:
Smear colors inwards towards your brush center.
Expand:
Smear colors outwards away from your brush center.