One file, both modes. Every colour is an attribute written as var(--token, #light), so the drawing takes the mode of the page it is referenced into and still renders on its own — in a README or a tab — as the light file it falls back to. What it cannot be is an <img>: that renders in a document of its own, where no token is declared.
What changed against the existing set: the five hues are gone, the drop shadow is gone, the 28px outer radius is gone, and every identifier moved to mono. The claim, the five names and the closing line are unchanged.