How to use a custom SVG as the box used for an object?

Question

* This might be a "wanted features" if it isn't already part of the program. Also, the list code is formatted oddly, but I can't get it to look right here.

I see the following links with some information, but it isn't clear to me how I can import a SVG and use that as the entity's shape (box?). I do not want to just place an image within the box, rather I want to define a new type of box.

When I export to SVG and open it in inkscape it appears to me that the boxes are vector boxes that just normally get rendered to png, so I am guessing this is possible...

I was also wondering if it is possible to explicitly define the starting place of a box in absolute or percent relative to the generated image? Likewise, is it possible to explicitly place text starting at an X, Y within a box?

Related Links:

1. https://forum.plantuml.net/11354/applying-style-to-multiline-node-in-mindmap-diagram
2. https://plantuml.com/svg
3. https://forum.plantuml.net/4080/please-provide-commands-import-png-and-svg-images-from-files
4. https://plantuml.com/stdlib

Short list of 3 related questions:

1. How does one import a SVG and use that to define a new entity type?
   •  Example: Instead of a box, I want a star shape and have an SVG made in inkscape for this. Example, to illustrate what I am wondering but this is NOT a thought out scripting method:

1. @startuml
   @skinparam newboxtypeshape MyType ./box.svg

2. start 
   MyType "Some Group" {
    :Hello world;
   }

3. :This is defined on
   several **lines**;
   stop
   @enduml
   

1. How can I tell plantuml to place a box in a specific location in the final rendering?
   • Example, to illustrate what I am wondering but this is NOT a thought out scripting method:

     @startuml
     start
     :Hello world; @ x=0, y=0
     :This is defined on
     several **lines**;
     stop
     @enduml
     

2.  Is it possible to specify with a box where the text will be placed or aligned? If a custom SVG is used, that might be necessary, if for example the text has to be right below or the image has a region where the label would go.

I drew this up just now to illustrate what I am trying to find out :

Thanks!