1. Constructors
2. new
3. Properties
4. animated
5. backgroundColor
6. color
7. hashCode
8. height
9. key
10. label
11. max
12. runtimeType
13. showPercent
14. striped
15. value
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 ==