Paint Effects includes hundreds of saved brushes called brush presets. These are stored in the your mayapath/brushes folder. You can also create your own brush presets and store them either to a shelf or to a Content Browser subdirectory.
When you select a brush preset, its settings are copied to the template brush where you can tweak them before painting your stroke. If you do not select a brush preset before painting, the next stroke you paint uses the current settings for the template brush.
To select a brush preset, so one of the following:
 on the toolbar in the 
		  Paint Effects panel to open the 
		  Content Browser, and then click the icon for the brush you want to paint with.
 on the toolbar in the 
		  Paint Effects panel to open the 
		  Content Browser, and then click the icon for the brush you want to paint with. 
		If you select the brush preset in the Content Browser, the icon is highlighted with a yellow border, indicating that the brush settings were copied to the template brush.