Choose Preferences > General Preferences to open the General Preferences Options box.
Click Paint on the left hand side to open the Paint section.
Do the following:
To display or hide the brush preview turn Show Brush stamp preview on or off.
To display or hide the brush radius set Show Brush cursor outline to one of the following:
On | always display brush outline |
Off During Stroke | display brush outline except when creating a stroke of paint |
Off | do not display brush outline |
Brush outlines will only appear on systems with graphics cards that support hardware overlay planes.
Brush outlines are not displayed for very small brushes.
Click Go.