Pencil is freehand painting tool. Unlike Brush it can't have soft edges:
- In the Toolbox, select the Pencil
Tool. - Choose brush size and style*.
- Select color.
- Paint.
- on the Options bar you can define also blending mode (on animation I choose Hue) and Opacity.
- Auto Erase option allows you to use the Pencil
as Eraser
Tool:
- Select Auto Erase
- When your stroke starts on area with foreground color (cyan on animation), the tool erases.
- When your stroke starts on area with any other color the tool draws.
* More about choosing brush.

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