how can i set color for VC which is behind SideMenu?

[bizibizi]

my code

nvc.leftSide = true
nvc.menuWidth = round(UIScreen.main.bounds.width * 0.78)
nvc.presentationStyle = .menuSlideIn
nvc.statusBarEndAlpha = 0

was trying that:

 extension SideMenuPresentationStyle {
static var menuSlideInCustom: SideMenuPresentationStyle {
    let item = SideMenuPresentationStyle.init()
    item.menuOnTop = true
    item.menuTranslateFactor = -1
    item.onTopShadowColor = UIColor(red: 0.024, green: 0.075, blue: 0.176, alpha: 1)
    item.onTopShadowOpacity = 0.6
    return item
}

}

but do not have any change for color. color is clear...

[sagarsukode]

//To apply background shadow opacity behind menu
SideMenuManager.default.menuAnimationFadeStrength = 0.4

[kaaaaai]

//To apply background shadow opacity behind menu SideMenuManager.default.menuAnimationFadeStrength = 0.4

It's not working now. Is there any other solution?