The window tag is direct child of the windows tag. The individual windows are listed in front-to-back order, i.e. the first listed is the frontmost in the UI. Example:
<window bounds="Rect[ 933 915 1433 1265]" />
<tabs>[one or more <tab> tags]</tabs>
</window>
bounds. A space delimited array of 4 numbers being the screen pixel {x,y} co-ordinates of the top-left and bottom-right corners of the window.
Note that unlike for utility windows, no ID argument is needed.