Creative Tank

Here is an arc, select it with Selection Tool from toolbar.

Go to Window Brushes, or press F5 to open Brush palette.

Click the small arrow on the right corner of the palette, go to Open Brush Library Other Library.

I select mycanthus1 as my brush, then click Open.

In the list of brushes, I apply brush s1, and it would seem on Brushes palette.

I select Stroke and pick a color for my brush from Color Picker, click OK.

Double click S1 icon in the Brushes palette to open its dialog box. I change the brush Size to 25%, Spacing to 15%, Scatter to 16%, and then click OK.

I change appear of brushes successfully.