Aetherborn

If Worldborn are what happens when Echoes solidify, Aetherborne are what happen when Elementals solidify.
Instead of Warping magic, Aetherborn are meated-up Primordial Magic, and as such are elementally infused people. This can range from a person with funny colored skin to basically an elemental with legs and actual body mass, depending on various factors like region of origin, density of magic both where they were born and where they are now (and the difference between them, meaning that a drastic enough change in environment can mean a transformation), the stuff that passes as genetics in this species can influence the nature of their base qualities and their transformative possibilities--and, in general, they're magic people.
The elements they're made of often show in their basic appearances, and only a few don't have something that glows. Colors align stereotypically, most of the time, though fire is unexpectedly white and blue; air can be gray and even black; terran magics can be awfully particular about the difference between plantlife and rocks and will reflect this in the tone of brown; and water is just as likely to be green with flashes all kinds of colors.
Aetherborn, unlike Worldborn, can still feed off the energies they're made from, though not nearly as effectively as an elemental could. Surrounding themselves with their own 'type' is common, and they even lean toward colors that complement.
They're often called elementals by people who do not know that elementals already exist in less-solid forms.