%
% stack: x y w h
%
 App.PerSub
%
% show the form
%
 show
%
% back-color bkim-layout auto-size auto-size-mode
%
% layout  none:0 tile:1 center:2 stretch:3 zoom:4
% auto-size-mode  grow-shrink:0 grow-only:1
%
 0xFF000000 0 false 0 @^Backing