Often when making an emoji font, you only tie one codepoint sequence to one glyph, but sometimes you might want more than one.
Alias glyphs let you attach additional codepoint sequences to existing glyphs, so one glyph can have multiple codepoint sequences associated with it.
Alias glyphs are created by a JSON file, which is is structured as follows:
{ target : destination
, target : destination
, target : destination
, ...
}
The target is the codepoint of the alias glyph, and the destination is the image glyph the alias is pointing to.
The format of the target and destination are exactly the same as the filenames of your input images.
example
{ "1f3f3-fe0f-200d-26a7" : "101681"
}
-d
flag for codepoint delimiters applies to both the aliases file and the input folder).