@z3dev 'class' element for sure is interesting as it will ease styling. About 'id', yes it must be used carefully to ensure that each object has its unique id, generally I use names forged from data (line between triangle 23 and 111 has id 'L_23_111', etc.). 'name' is deprecated so it's maybe wise to avoid it, on very old js code I remember i used 'tag', as svg doesn't use it, as svg can use custom attributes, it can be anything. And it would be really great to have exported svg from jscad with such fine details, because it will allow rework those outputs with great ease. I tried to use localStorage from a jscad script and it doesn't work, so my only other possibility would be to output to console.
