name and change the brush icon
A. Identify Custom Brush
Open the Brush Properties dialog for your new brush. Click the Edit button, which opens the Identify Custom Brush window. This enables you to give the brush a title and assign an icon to it, to keep your tools organised if you have several brushes.
B. Selecting an icon
You now should be looking at the Identify Custom Brush window. The first option is to name your brush. Below is SketchBook Pro’s massive Icons library: scroll through the series and find one that fits best with your new brush. Once you’ve chosen, hit the Save button to complete the customisation.
C. Adding to the Palette
You will have a new brush sitting in the Brush library. To add it to the Brush palette, click and hold the mouse over it, drag it to the palette and release on top of any brush. SketchBook replaces the palette brushes, so drag your brush over a tool you never use.