Create custom icons based on the following guidelines to yield a consistent style. Propose your icons be included in the common set by adding an issue in Github. For implementation instructions, visit the Icon component page.
Download Sketch template

Sizes for basic shapes.

2px strokes. Use right angles as often as possible. Round large exterior corners to 1px, Round small exterior corners & stroke terminals to 0.5px. Use right angles when possible.

What not to do when designing icons for the design system.