Check Box format on XP

[Graham Samuel]

I'm doing a cross-platform app, and the people I'm doing it for like  
the look of the OSX-style check boxes. They say of the Windows XP  
version:

'buttons should be same as Mac - white, then with a black tick on a  
blue background if in use'

I can't find a way to do this - messing with the various colors in a  
tick box doesn't seem to do anything. Is there any way to do this,  
apart from simuating it all with home-grown icons?

TIA

Graham

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Graham Samuel / The Living Fossil Co. / UK and France