A single episode that treats color itself as a living thing, not a visual property. Watch it once for the meditation, watch it again because the animation is doing something you missed, cycling through states that mirror what the story is actually about. This is what happens when a creator stops explaining and starts showing.
A short ONA built around the theme of color, released as a single episode. It follows a soul through the circle of life, with color and colorlessness rising and receding in turn. An updated version was later posted to YouTube on February 21, 2019, with small adjustments to the coloring of some scenes.