UIPageControl has unspecified grey background colour

Question

I have a UIPageControl on a UIViewController however despite trying to change the background colour in the attributes inspector it remains this dark grey colour that does not display in the interface builder.

As shown in the image below:

Any ideas on how I can fix this? - ideally I want a transparent background but I just applied the yellow to compare more clearly.

Answer 1

Changing the background color of the UIPageControl can be done through the UIAppearance protocol.

Apple Docs

You can customize the appearance of instances of a class by sending appearance modification messages to the class’s appearance proxy.

Example

UIPageControl.appearance().backgroundColor = .darkGray

Solution

Make sure you do not have a call to change that.