Enable window scaling

Step-by-step guide

1. Open the existing skin.
2. Expand Resources and then open Fullscreen.
3. Activate the Resizable option.
4. Add a Background color if desired.
5. Add any images used in the background as skin elements.
   1. Expand Resources and then open Images.
   2. Add the image you are using.
   3. Open a skin view.
   4. Add an image skin element and transfer the settings using the Transfer Properties function.
6. Save the skin.