raster image of paint-grad-203-t

Test on gradients with gradientUnits set. There are two rects, one using a gradient with gradientUnits set to "objectBoundingBox" and one with "userSpaceOnUse". Both rects contain a smaller rect to visualise the use of gradientUnits. In the top rect, the small one should appear as a smaller version of the big rect. In the bottom rect, the small one should just as a "frame" on the big rect.