Use the Paintbrush Tool to create freeform strokes
of color as you would a paintbrush on a canvas. From the Tool Settings Panel, select the color,
shape and size of your brush in the Brush/Fill controls. The current style
will be highlighted in blue. You can also specify the opacity using the Opacity
slider.
Settings for the Paintbrush Tool
To paint with the paintbrush, click and hold down the left mouse button within the Work Area and drag your mouse.
Painting with the Paintbrush