This option is used to define a special background color to be applied to INFLD edit controls when they are active. The theory is that by defining a light color that is nonetheless distinguishable from the standard white, it will be easier for users to detect which edit field is active. Note that the effect only works for INFLD controls that are based on the standard Windows edit control (i.e. includes combo boxes and up-down controls, but not check boxes, radio buttons, or date/time controls.) Note that the button and feature is not active unless the Force Standard Colors in Edit Boxes option is checked.
