The MagiCompression and dithering that was added in step 3 can be modified by dragging shapes with the mouse on the Original or Optimized windows. The left mouse button adds MagiCompression or dithering while the right mouse button deletes it. A good way to use this feature is for removing MagiCompression from regions you want to look their best. This might be around the eyes in a face or around a piece of text.
| For example in this image the face has been marked by circling with the mouse and the right mouse button held down. |  |
Step 5 (optional): Work with regions (Advanced)