Consider using a component's entire build or style functions to listen for changes in props.

[JSideris]

So if a prop is used in building or styling, and then changed, the build or style function will be called again, triggering an instant re-render of the entire component.

[JSideris]

It's trivial to get this working for styles. Just listen for a prop being used in the style builder, and restyle if the prop changes.

It's more difficult to get this working with the builder because re-rendering is potentially expensive and risky. Risk comes from the possibility of accidentally wiping out events or references to existing elements. Another problem is the state of input components.

One possibility is to call the builder again but rather than re-render, loop through the generated elements and copy their content and attributes to the existing rendered elements.

One problem with this approach is that this could pose a problem for conditional elements, and nested components.

More thought is required.