1. Constructors
2. new
3. Properties
4. bearColor
5. bullColor
6. data
7. hashCode
8. height
9. key
10. runtimeType
11. showVolume
12. style
13. Methods
14. asFocusable ^(ext)
15. asSemanticButton ^(ext)
16. asSemanticHeading ^(ext)
17. build
18. createElement
19. debugDescribeChildren
20. debugFillProperties
21. excludeFromSemantics ^(ext)
22. mergeSemantics ^(ext)
23. noSuchMethod
24. toDiagnosticsNode
25. toString
26. toStringDeep
27. toStringShallow
28. toStringShort
29. withSemanticLabel ^(ext)
30. Operators
31. operator ==