The paintbrush tool paints fuzzy brush strokes. All strokes are rendered using the current brush.
There are different possibilities to activate the tool:
From the main menu:
→ → .By clicking the tool icon in the Toolbox.
By pressing the P keyboard shortcut.
This key changes the paintbrush to a Color Picker.
This key places the paintbrush 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.
Normally, tool options are displayed in a window attached under the Toolbox as soon as you activate a tool. If they are not, you can access them from the main menu through
→ → which opens the option window of the selected tool.