How to double line any node shape in Mermaid

Question

Mermaid node shapes allow to double only circles with ID1(((Text))), but I need to create a double lined rhombus, and maybe a double lined square to.

I know that it's possible to write CSS code in Mermaid, but I don't find any solution to my problem.

This is the result that I want, but I want it with rhombus

Answer 1

This is not currently possible. You would need to request support for a new shape at : https://github.com/mermaid-js/mermaid/issues