1. Constructors
2. new
3. Properties
4. color
5. disabled
6. fullWidth
7. hashCode
8. icon
9. key
10. label
11. loading
12. onPressed
13. runtimeType
14. size
15. variant
16. Methods
17. asFocusable ^(ext)
18. asSemanticButton ^(ext)
19. asSemanticHeading ^(ext)
20. build
21. createElement
22. debugDescribeChildren
23. debugFillProperties
24. excludeFromSemantics ^(ext)
25. mergeSemantics ^(ext)
26. noSuchMethod
27. toDiagnosticsNode
28. toString
29. toStringDeep
30. toStringShallow
31. toStringShort
32. withSemanticLabel ^(ext)
33. Operators
34. operator ==