Sets the background color of the current plot. The color may be specified as a number or a list. See the Colors section of the programming guide for more details. This change is temporary and is not saved with the model. When the plot is cleared, the background color will revert to white.
Note: Plot backgrounds do not support transparency. If a list is used to set the color, the alpha component will be ignored.
This command will produce a runtime error if the current plot has not been set.
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