disabledThumbGapWidth:

2.0

);

Code after migration:

RectangularSliderTrackShape

();

References

API documentation:

RectangularSliderTrackShape

Relevant PRs:

Animation changed in #30390

Deprecated in #65246

Removed in #98613

Text selection of ThemeData to TextSelectionThemeData

Supported by Flutter Fix: yes

The following ThemeData members were first deprecated in v1.23, and extended
in v1.26.

useTextSelectionTheme

textSelectionColor

cursorColor

textSelectionHandleColor