Window Shade

a cabin window with a shade drawn down by hand, and a cabin that goes dark as it comes.

key insight: one number carries the panel and the whole palette. every tone on the stage is color-mix(in oklab, <light token>, <inverse token>, var(--shade)), so the theme is a position rather than a state and half way down is a place a reader can stop.

oklab and not the default srgb, which is already dark for most of its travel and lurches at the end. text cannot interpolate at all, since its tone has to cross the ground it sits on, so the ink steps over 0.04 of travel at the point where both sides are least unequal.