otColorGlyphReferencePng

fnharfbuzz.blob.Blob otColorGlyphReferencePng(harfbuzz.font.Font font, harfbuzz.types.Codepoint glyph)

Fetches the PNG image for a glyph. This function takes a font object, not a face object, as input. To get an optimally sized PNG blob, the PPEM values must be set on the font object. If PPEM is unset, the blob returned will be the largest PNG available.

If the glyph has no PNG image, the singleton empty blob is returned.

Parameters

`font`	#hb_font_t to work upon
`glyph`	a glyph index

Returns

An #hb_blob_t containing the PNG image for the glyph, if available