>I have searched the VFP online documentation high and low and can find nothing that specifies the mapping from each of the 10 color pairs in a color scheme to the particular screen attribute controlled by each.
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>Since color scheme's seem to be a MS Windows construct, I even looked in Windows documentation for the desired specs, but could not find them.

The color pair system was used in Foxpro DOS and windows. I have looked in the FP 2.6 for Windows help file and there is a full description under the topic COLORS.