You can create a custom brush from scratch using a raster image, from a copied preset or from a pixel selection. You can also edit existing brushes and either override them or duplicate to save your altered versions.
About custom brushes
By default, unmodified brushes in the panel are presented with a blue outline around their entry. When modifying brush settings, the customized brush will be presented with a red outline and a red dot in its top-left entry.
To edit an existing brush do one of the following:
With the Paint Brush Tool selected, on the context toolbar, click More.
On the Brushes panel, -click the brush you would like to modify and select Edit Brush.
On the Brushes panel, double-click the brush you would like to alter.
On the Brushes panel, click Edit Brush.
To update or reset brush settings:
-click the brush you would like to modify and select the option.
To create a custom preset brush stroke from scratch:
On the Brushes panel, click Panel Preferences and then select:
New Intensity Brush—creates a brush stroke using a raster image, with darker pixels from the image rendered more opaque and lighter pixels more transparent. In the pop-up dialog, navigate to and select a file, and click Open.
New Round Brush—creates a brush stroke based on a circular shape.
New Square Brush—creates a brush stroke based on a rectangular shape.
New Image Brush—creates a brush stroke based on the color values of a raster image. In the pop-up dialog, navigate to and select a file, and click Open.
The new brush is added to the selected category using default settings. To edit the default settings, follow the procedure below from step 3 immediately below.
To create a custom preset brush stroke from a preset:
On the Brushes panel, select a brush.
-click the brush entry and select Duplicate Brush.
Select the duplicated brush (below the original), click it and choose Edit Brush.
Adjust the settings in the dialog. See Modifying brushes for more information.
Click Close.
(Optional) Move your brush to a category via -clicking the newly created brush and selecting the option.
To create a custom image brush from a pixel selection:
Make a selection using a pixel selection tool.
On the Brushes panel, choose a category to save your brush to.
Click Panel Preferences and then select New Brush From Selection.
The image brush is added to the end of the current brush category. Custom intensity brushes can also be created from a mask layer that has a pixel selection in place by using the same process.
To edit an existing brush do one of the following:
To create a custom preset brush stroke from scratch: