The Airbrush tool emulates a traditional airbrush. This tool is suitable for painting soft areas of color.
You can activate the Airbrush tool in several ways :
From the image-menu, through :
→ →By clicking on the tool icon: in the Toolbox,
By using the A keyboard shortcut.
Ctrl changes the airbrush to a Color Picker.
Shift places the airbrush into straight line mode. Holding Shift while clicking will generate a straight line. Consecutive clicks will continue drawing straight lines that originate from the end of the last line.
The available tool options can be accessed by double-clicking the airbrush Tool icon.
The Rate slider adjusts the speed of color application that the airbrush paints. A higher setting will produce darker brush strokes in a shorter amount of time.
This slider controls the amount of color that the airbrush paints. A higher setting here will result in darker strokes.