Window commands:

 These commands specifies the windows apperance. They can only be specified
 once in the same script.

 Background
 Border
 Close
 Columns
 Darkcolor
 Font
 Gap
 LightColor
 MarkButton
 Palette
 Pattern
 Popup
 Rows
 Screen
 ShowPatterns
 Size
 SortButtons
 SortText
 Title 
 WindowSize
 X
 Y