Hi Marco,

I updated lib example. Now it can add a nodes.

>>Hmm...I think 24x24 it's too small. Maybe 32x32 is better.
You are free to use any icon size :) We can change it anytime we want.

Unfortunatelly, svg is not supported by MoI, so we should use png.
Maybe later we will make our own vector icon format for NE.
I think it is not bad idea for a plain design icons. We could draw a node icon and convert it to a compact data string.
It will be much smaller than base64 encoded png and can be exported directly from MoI.