Flash CS3 Tutorial
How to Draw Shapes with Selected Stroke Color in Flash
Drawing with the Pencil tool is similar to the Pen tool in that it draws using the current stroke color.
Select the Pencil tool (y key) and set the Stroke color.
With the Pencil Mode set to Ink, draw a line in the workspace.
Change the Pencil Mode to Smooth and draw another line.
Set the Pencil Mode to Straighten and draw a third line.