Step-by-step: Use a stencil to create precise brush strokes
1 Open the Explore the Masking, Snapping, and Symmetry options (Friskets) located on the left side of the Sketchable workspace. The icon looks like a triangle overlapping a ruler. A panel opens with Symmetry, Mask, Stencil, and Grid options. Choose Stencil.
2 Another panel opens showing Stencil options. Turn the Eye icon on so that the Stencil is visible. It will be a blue colour. The default Stencil is a line with control points at the top, middle and bottom. You can click the control points to transform the stencil.
3 Click the Shape Selection icon and select a different shape. The Stencil updates to the chosen shape. Click the Stencil Gestures (padlock icon), choose a brush, and now you’re able to paint a precise stroke that’s constrained to your chosen Stencil.