The scrollbar properties should be mutable

[Hamza417]

The settings properties are stored using a data class with immutable properties. I think it'd better to have them as mutable to individually modify them on the go or as required using the .apply { } like this

LazyVerticalGridScrollbar(
    state = listState,
    settings = ScrollbarSettings.Default.apply {
        thumbUnselectedColor = MaterialTheme.colorScheme.onSurface.copy(alpha = 0.5F),
        thumbSelectedColor = MaterialTheme.colorScheme.onSurface,
    }
)

I'm not sure if a data class should have mutable properties, and a model class with setters would be a better choice here?

[nanihadesuka]

Passing a class with public mutable parameters to a composable is a bad idea, as compose engine can't then detect changes.
What you want can be easily done by doing ScrollbarSettings.Default.copy(...)

Will close as this is not a desired change.