I use the Feature Tree interface, with several custom dialogs. One of them has flags. These flags cannot have transparent backgrounds, which means that I had to paint the default background color in the background image so that the flags do not appear.
However, different versions of Windows have different colors by default! If I match the color in Windows 7, it looks bad on XP, etc. Since background images are bitmap images, I cannot make them transparent. What can I do to get around this?
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