We are exploring an option in goJS where on JS control we can apply custom style or may be an SVG over the top of an Icon.
e.g. Suppose there is a icon(for Sun) for which I want to show the beams coming out of it.
An SVG extrapolation or custom styling may help. Can you help us in exploring this?
In my opinion you still haven’t provided enough information to be able to distinguish whether it should be an Adornment rather than just an extra Shape that is sometimes visible or opaque in your node template.
Local View does highlighting like what you are talking about, except that it uses a radial gradient brush filling a circle rather than an interesting shape with some fancy geometry. It also uses only a single Part, because in that sample there can be only one that is highlighted at a time. I still have no idea of when you want your highlighting to occur.