Jetpack Compose Side Effect to update Android or iOS status-bar and navigation-bar color

platform.android.kt

@Composable
actual fun PlatformColors(statusBarColor: Color, navBarColor: Color){
  val sysUiController = rememberSystemUiController()
        SideEffect {
            sysUiController.setSystemBarsColor(color = topColor)
            sysUiController.setNavigationBarColor(color = bottomColor)
        }
}

platform.common.kt

@Composable
expect fun PlatformColors(statusBarColor: Color, navBarColor: Color)

platform.ios.kt

    @Composable
    private fun statusBarView() = remember {
        val keyWindow: UIWindow? =
            UIApplication.sharedApplication.windows.firstOrNull { (it as? UIWindow)?.isKeyWindow() == true } as? UIWindow
        val tag = 3848245L // https://stackoverflow.com/questions/56651245/how-to-change-the-status-bar-background-color-and-text-color-on-ios-13

        keyWindow?.viewWithTag(tag)?.let {
            it
        } ?: run {
            val height =
                keyWindow?.windowScene?.statusBarManager?.statusBarFrame ?: zeroValue<CGRect>()
            val statusBarView = UIView(frame = height)
            statusBarView.tag = tag
            statusBarView.layer.zPosition = 999999.0
            keyWindow?.addSubview(statusBarView)
            statusBarView
        }
    }
    
    
    @Composable
    actual fun PlatformColors(
        statusBarColor: Color,
        navBarColor: Color
    ) {
        val statusBar = statusBarView()
        SideEffect {
            statusBar?.backgroundColor = topColor.toUIColor()
            UINavigationBar.appearance().backgroundColor = bottomColor.toUIColor()
        }
    }
    
    private fun Color.toUIColor(): UIColor = UIColor(
        red = this.red.toDouble(),
        green = this.green.toDouble(),
        blue = this.blue.toDouble(),
        alpha = this.alpha.toDouble()
    )

Fiz esse implementação e só funcionou em Android

Could You Please use import packages getting lot of errors.

Why there is no imports? Please share the full source code.