[masklinn]

> Not if you have to render them, or store them in a font.

I think you misunderstood the comment to which you replied. What it was saying is that emoji fitzpatrick scale and color fonts are orthogonal concerns, you can do skin tones in grayscale.

[TazeTSchnitzel]

Yes. Also, emoji were in colour long before there was the suggestion of adding skin-tone modifiers.