The emoji picker on OSX has a series of "category" icons, which emoji are grouped by:
Do you know where those can be found? I looked in the system icons directory,
/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/, and couldn't find them there.
I then used Font Book to look at all of the symbols in the Apple Color Emoji font, and I couldn't find them there, either.
Are there other common places that Apple stores resources for apps? Do you know where these things are stored?