What is this Text Styles thing in Interface Builder?

Question

Wondering if there is some way to modify the properties found in this Text Styles dropdown on interface builder. Not sure how to find any docs relating to this.

Answer 1

Text Styles

Text Styles are semantic descriptions.

There are a fixed number of descriptions, and currently, in iOS 9,

10 styles are supported: Title1, Title2, Title3 Headline, Subheadline Body Footnote Caption1, Caption2 Callout

Use this link for reference https://developer.apple.com/reference/uikit/uifontdescriptor#//apple_ref/doc/constant_group/Text_Styles