property NonworkingPattern.BackColor as Color
Specifies the non-working's background color.

TypeDescription
Color A Color expression that specifies the background color to show the non-working time-interval. The last 7 bits in the high significant byte of the color to indicates the identifier of the skin being used. Use the Add method to add new skins to the control. If you need to remove the skin appearance from a part of the control you need to reset the last 7 bits in the high significant byte of the color being applied to the background's part.
By default, the BackColor property is 0, which means that no effect. The BackColor property has effect only, if set to a non-zero value. The BackColor property can be used to display a solid color or an EBN object on the non-working time-interval's background. The Pattern.Color property indicates the color to display the pattern, while the Pattern. Type property is not exPatternEmpty. The Pattern.FrameColor property indicates the color to show the frame, if the exPatternFrame flag is included in the Pattern.Type property. The BackgroundExt property  specifies additional colors, text, images that can be displayed on the pattern's background using the EBN string format.