selection
fun selectionLine(visible: Boolean = true, color: Color = androidx.compose.material3.MaterialTheme.colorScheme.primary
.copy(alpha = 0.6f), width: Dp = with(LocalDensity.current) { 1f.toDp() }): BarSelectionLineStyle(source)
Returns a BarSelectionLineStyle for the selection indicator. The default stroke width preserves one physical pixel at the current density.