You can also convert a brush zone into a pencil line with the Brush Stroke to Pencil Line option. If you draw with the Brush tool and want to modify the thickness, use the Contour Editor tool. If you draw with the Pencil tool and want to modify the thickness variation, use the Pencil Editor tool. This means that a pencil line’s control points (used to deform its shape) are located along the length of the central spine and the Brush line’s control points are located along the contour. The Brush tool produces contour vector lines. The Pencil and shape tools produce central vector lines. Both tools support pressure sensitivity, allowing you to create lines with variable thickness. The Brush and Pencil tools are used to draw and sketch with.