Erase

Select Ellipse from the [Tools] pull-down menu to select [Erase] Tool from the toolbox. You can use the Select Tool to select area in the editor window and then use Erase Tool to erase the color to transparent in selected area. If you want to erase or change the color to a fixed color, you should use Pen tool or Line tool to draw the points.

You may also press [Erase] icon from the toolbox window.

Erase All

Select Erase All from the [Tools] pull-down menu to select [Erase All] Tool from the toolbox. The Erase All tool is used to erase the color in all the editor window to transparent. If you want to erase or change the color to a fixed color, you should use Pen tool or Line tool to draw the points.

You may also press [Erase All] icon from the toolbox window.