Regardless of the merits of the functionality, customising the appearance of the node like that is completely unsupported.
We reserve the right to change how the drawing code works at any time without worrying about it breaking things like this.
Breaking changes are likely to happen in 1.0 as we change the underlying CSS structure of the whole editor to tidy it up.
As for the functionality, let me repeat what I said in the previous thread:
None of that has changed in the four days since I posted it.