change UIAlertcontroller background Color

Question

Ok so I have this alert that I am using and I want the background of it to be black not grey like it is. I have managed to change the colour of the text for the title and the me

Answer 1

In case someone wants to have an opaque white background color he can do this with this one liner:

UIVisualEffectView.appearance(whenContainedInInstancesOf: [UIAlertController.classForCoder() as! UIAppearanceContainer.Type]).backgroundColor = UIColor.white

Note however this will work properly only with white color as other colors will appear differently because of the default visual effect.