This project draws a radial gradient ellipse with the Pen extension. Click the green flag to render a radial gradient ellipse with randomized size and start/end fill colors (including transparency values). Put this in your backpack use in your projects if you like :)
Only use this if you need a radial gradient. There are much faster ways of rendering single-color or linear gradient ellipses. The reason it is so slow is that it draws one pixel at the time. Single-color or linear gradient ellipses can be drawn using a single stroke for an entire row (or column depending on the direction of the linear gradient).