Resolves one character to a glyph, falling back to the missing-glyph box.
char is expected to be a single code point's worth of string — what
iterating a string with for…of yields, so an astral character arrives whole
rather than as two lone surrogates.
Resolves one character to a glyph, falling back to the missing-glyph box.
charis expected to be a single code point's worth of string — what iterating a string withfor…ofyields, so an astral character arrives whole rather than as two lone surrogates.