iOS provides a set of APIs through the UIAppearance protocol that allows us to adjust the appearance of the views once, without having to explicitly modify the styling properties on every instance of each view. This is particularly useful if, say, we want a specific view to have the same appearance throughout the app.

Apart from setting the styling properties of a view globally, we can also define the appearance of this view to be different under certain circumstances. Read on to find out how to accomplish this.