This feature is still in development.
- Eraser check box. When checked, the brush acts as a rubber.
- Display the set of configured brushes (MyPaint brushes format). By
default, Synfig is installed with a selected set of brushes from
“Concept Design (C_D)” pack by Ramon
From the Preferences_Dialog#System,
you can configure the
Brush Presets Pathto use other brushes package (for example the ones listed by MyPaint)