I tried to set the font of UIButton via appearance proxy. But it doesn\'t seem to work. This is what I tried.
UIButton
UIButton.appearance().titleFont = UI
You are trying to set a font of UILabel inside UIButton. Since UILabel is not tagged with UI_APPEARANCE_SELECTOR. You can't do it like this.
UILabel
Look at the list of the UIAppearance elements at: What properties can I set via an UIAppearance proxy?