Things like "heart", "flag", "envelope" or "star" have their unicode. But things like "burger" menu, "share" or "tag" icons don't. What do I do? If I leave unicode empty, then at least Illustrator CS6 treats these glyphs as unknown and won't allow to change their family or weight via the menus.
I know that with San Francisco, Apple utilized Private Use area for some glyphs. Is that the solution? Is there a difference which numbers I use? Can I just start from U+F0000 and go forward?