y 

n/a 

n 

Required 

_ 

_ 

_ 

7-26: 

If your application uses paned windows, they are composed of any number of groups of components, called panes, each separated by a sash and a separator. The panes, sashes, and separators are grouped linearly, either horizontally or vertically. A sash is the handle on a separator between two panes that is used to adjust the position of the separator. 

This specification ensures the consistent appearance of a paned window across applications.