How to pass html element as label

[prasad4fun]

What is the simplest way to pass an HTML element as a label/annotationClass instead of a static label string?
Ex: Passing a dropdown HTML element with custom labels

[philenius]

@prasad4fun, two years later, I actually had the time to figure out how to implement this feature so that you as a user of my Angular library can provide your own visualization component. However, I have to figure out how to fix a major bug in this implementation. Screen recording: