[Setup]: WizardImageBackColor

Valid values:

A value in the form of $bbggrr, where bb, gg, and rr specify the two-digit intensities (in hexadecimal) for blue, green, and red respectively. Or it may be one of the following predefined color names: clBlack, clMaroon, clGreen, clOlive, clNavy, clPurple, clTeal, clGray, clSilver, clRed, clLime, clYellow, clBlue, clFuchsia, clAqua, clWhite, clNone, clWindow.

Default value:

$f9f3e8 (bluish gray) if the built-in wizard image is used, clWindow otherwise.
Description:

This directive specifies the background color used to fill any unused or transparent space around the wizard image, which is specified by WizardImageFile.