>A checkbox's default backcolor is rgb(236,233,216). Its backstyle is 0 (transparent) and its SpecialEffect is 2 (hot tracking), thus showing the image under it. When I change the backcolor to some other value, the transparency is gone. That's fine. If I change back the backcolor to 236,233,216 the transparency is there again. That's also fine. Questions:
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>Can I rely on that value 236,233,216? Or is it influenced by e.g. the Themes, Colorscheme or Colorsource property?
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>Is this value 236,233,216 a special one with regard to transparency?
Peter

The VFP default backcolor for a checkbox is RGB(226,226,226) (system colour I suppose)
The backcolor should not have any effect if the BackStyle = 0 (Transparent) with and without an image.

I have tried different combinations of Themes, SplEffect, Backcolor and BackStyle.

The only time I see the BackColor is if the Backstyle = 1

There must be something else affecting this.

Bernard