[Slider] Make thumb in slider component more customizable.

[ksairamya]

Should be able to customize thumb in slider component.

Expected Behavior

Customizing thumb should be flexible and have a separate prop for customizing thumb with images or icons.

Current Behavior

currently there is no option to customize the thumb with images. By default is is of type button and styles are applied on that but there is option to change the type of thumb.

Examples

Context

currently I'm trying to add a mdi-react LabelIcon as a thumb to the slider but it is not allowing me to do that. Because it is a button and there is option to override that I'm blocked.

[adeelibr]

#12485 I have made a PR for this feature.

[ksairamya]

Thank you.

[adeelibr]

#12600

[eps1lon]

This was shipped with @material-ui/lab@v3.0.0-alpha.16 in #12600. Is this sufficient for your use case @ksairamya?

[ksairamya]

yes this is sufficient @eps1lon . Thank you for working on it.

[eps1lon]

That was mainly @adeelibr. I just wanted to make sure that this issue can be closed.

[adeelibr]

Should this issue be closed now? @oliviertassinari