In the meantime, I’ve clarified what sets we support and it seems it’s only Silk and FA. I’ve updated the doc accordingly, see https://www.xwiki.org/xwiki/bin/view/Documentation/DevGuide/FrontendResources/Icons/?viewer=changes&rev1=5.1&rev2=6.1&
This means that if the icon names you proposed have a mapping for Silk and FA, they’re good enough to be used.
Thanks!