progress
fun <T> Container.progress(bounds: Bounds<T>, className: String? = null, init: Progress<T>.() -> Unit? = null): Progress<T>
fun Container.progress(min: Number = 0, max: Number = 100, className: String? = null, init: Progress<Number>.() -> Unit? = null): Progress<Number>
DSL builder extension function.
It takes the same parameters as the constructor of the built component.