This key changes the paintbrush to a Color Picker.

This key places the paintbrush into straight line mode. Holding Shift while clicking Button 1 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 Paintbrush Tool icon.

The Opacity slider sets the transparency level for the paint. A higher opacity setting results in a more opaque fill and a lower setting results in a more transparent fill.

The Mode dropdown list provides a selection of paint application modes. A list of these modes can be found in the Glossary.

Indicates the active brush. Clicking on the brush icon opens the brush selection dialog.

The dropdown list allows to select a gradient that will be used if the "Use Color from Gradient" option is checked. This gradient can be reversed by checking the Reverse option.

The Incremental checkbox activates incremental paint mode for the tool so that color opacity increases each time the brush passes over the same place but cann't excede the original color opacity. More information about incremental mode can be found in the glossary.

The Pressure Sensitivity section sets the sensitivity levels for input devices that support this option.

This option sets the stroke to fade out after the specified distance. The stroke will fade to transparency at the completion of the set distance.

Instead of using the Foreground or Background color, the color is based on the active gradient selection.

The gradient is painted in a forward direction. The entire color sequence of the gradient will be rendered within the distance set.

Sawtooth Wave : Renders the gradient repeatedly. At each expiry of the distance that has been set, the gradient will begin rerendering from the beginning.

Triangular Wave : Renders the gradient repeatedly. At each expiry of the distance that has been set, the gradient will reverse direction and render in that direction until the expiry of the distance once more. At this point, it will begin again until the stroke is complete.