The ImageEditor control should provide an out-of-the-box tool that functions as an Eraser, i.e. removes previously drawn geometric shapes. This tool should behaves similarly to a the way other image editing tools provide the option to remove pixels - more precisely applies the background color to the canvas.

Add ability to RadImageEditor to show the progress  when saving the image to the server, displaying  back to the user how much time is left to save the newly changed image back to the server.