You can erase paint from the canvas using any brush by setting the brush type to Erase. Painting over an image on the canvas with an Erase brush removes the color from the painted pixels, revealing the underlying canvas Clear Color and maintaining the shape of the brush. For example, if the brush has leaves, the color is removed where the leaves are painted. If you change the default clear color without applying it, the original clear color is revealed. Erasing also removes alpha.
To erase brush strokes from the canvas