(7/12) (version 0.07) Linear and radial gradients Click on the image to see a video tutorial that shows how linear and radial gradients function now. To sum up, hovering over an edge then clicking and dragging will let you resize the linear gradient, or change the start or end radius of a radial gradient. You can select and move the color control points on screen, and change their colors by fiddling with the viewer's color box below.