The Epina ImageLab shortcut bar can display a background color gradient which is controlled by two colors (color 1 and 2 in the figure below). The property ColorShortCutBar2 determines color 2 of the shortcut bar.
Hint 1:
The type of the gradient is controlled by the property ColGradient.
Hint 2:
Any change of the properties of the class CustGuiProps will be effective only after calling SaveToRegistry.