How to cut a shape in Sketch using a border?

6 years ago from


In the image above. I want to use the red line to cut the green shape below. Essentially I want a thinner green arrow. How can I achieve this?

The red line is a shape with no fill and a red a border. The green arrow is a shape with a green fill and no border. I've tried masking, subtracting to no effect.

Many thanks