UnTextTheme constructor Null safety

UnTextTheme()

1. unself_style
2. unself_style
3. UnTextTheme
4. UnTextTheme constructor

UnTextTheme class

1. Constructors
2. UnTextTheme
3. Properties
4. hashCode
5. runtimeType
6. Methods
7. noSuchMethod
8. toString
9. Operators
10. operator ==
11. Static properties
12. largeText
13. mediumText
14. smallText