window caption buttons

[Filip Navara]

William Poetra Yoga Hadisoesen wrote:

>There are two mistakes:
>1. The borders aren't correct. For an active unpushed button, there should only
>be one "top-left edge". For a pushed button, there should be only one
>"bottom-right edge" (and inner/outer "top-left edge"s)
>  
>
Actually there should really be two top-left edges, but one just happens 
to be the same color as the interior.

- Filip