цвет рабочей области окна

Sub Example_GraphicsWinModelBackgrndColor()
    ' This example returns the current setting of
    ' GraphicsWinModelBackgrndColor. It then changes the value, and finally
    ' it resets the value back to the original setting.
    
    Dim preferences As AcadPreferences
    Dim currGraphicsWinModelBackgrndColor As OLE_COLOR
    
    Set preferences = ThisDrawing.Application.preferences
    
    ' Retrieve the current GraphicsWinModelBackgrndColor value
    currGraphicsWinModelBackgrndColor = preferences.DISPLAY.GraphicsWinModelBackgrndColor
    MsgBox "The current value for GraphicsWinModelBackgrndColor is " _
            & preferences.DISPLAY.GraphicsWinModelBackgrndColor, vbInformation, "GraphicsWinModelBackgrndColor Example"
    
    ' Change the value for GraphicsWinModelBackgrndColor
    preferences.DISPLAY.GraphicsWinModelBackgrndColor = 16
    MsgBox "The new value for GraphicsWinModelBackgrndColor is " _
            & preferences.DISPLAY.GraphicsWinModelBackgrndColor, vbInformation, "GraphicsWinModelBackgrndColor Example"
    
    ' Reset GraphicsWinModelBackgrndColor to its original value
    preferences.DISPLAY.GraphicsWinModelBackgrndColor = currGraphicsWinModelBackgrndColor
    MsgBox "The GraphicsWinModelBackgrndColor value is reset to " _
            & preferences.DISPLAY.GraphicsWinModelBackgrndColor, vbInformation, "GraphicsWinModelBackgrndColor Example"
End Sub