inactiveColor property Null safety
final
The color for the inactive portion of the slider track.
The "inactive" side of the slider is the side between the thumb and the maximum value.
Defaults to the SliderThemeData.inactiveTrackColor of the current SliderTheme.
Using a SliderTheme gives much more fine-grained control over the appearance of various components of the slider.
Ignored if this slider is created with Slider.adaptive.
Implementation
final Color? inactiveColor;