New Symbols .svg

I wanted to made a new Modeler extension.

For this I made some svg-symbols that i want to use in inkscape but there is realy much text. I saw in the documentation, that I need the d:’’ part. But in my Symbols there are many of them.
Do I need all of them and part them like UserTask in this example?:

Please share a running / prototypical example that clearly shows what you’re trying to achieve, what is working and what is not.

Use our existing starter projects to quickly hack it or share your existing, partial solution on GitHub or via a CodeSandbox. Provide the necessary pointers that allow us to quickly understand where you got stuck.

This way we may be able to help you in a constructive manner.

Thanks :heart:

This is my current work:

Here ( I made my Model extension. I just want to extend activities and message flows with subcategories (and subsubcategories).
I want some symbols to be annotated to activities (right corner) and message flows. So I use this ( to add my .svg-symbols.
Now I wanted to add these symbols here:

I still do not understand what you mean by

I saw in the documentation, that I need the d:’’ part.

Could you elaborate?