>>I recently encountered this too. The solution is set the Grid.Themes property to .F.. It is strange, I know, but it works.
>>I recall seeing it mentioned in a forum somewhere. Perhaps StackOverflow.
>>
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>Maybe on foxite. ie: https://www.foxite.com/archives/gridheadercolour-0000135294.htm
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>It affects grids, pages, checkbox ... and the full list is documented in VFP help.
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>To apply it globally on a form for all the controls it has effect on, you can use sys(2700,0) - turn it OFF globally, default is 1 ON.

thanks