- Logo: Meta's white matte (2026-11-09) as the UI mark; icons are the mark on a night-sky tile. Dark ink on Noonday Sky.
- Plates (title bars, lists, composer) and the sign-in card: blur with a light sky tint (PLATE_TINT 0.45), never opaque.
- auto sky picks the theme from the resolved sky: day light mode, night dark mode, dusk the dark-ink crossover.
- Terrain grid 768/2048 full, 512/1024 low, 256/1024 still.
- Temporary Background group (Terrain, Ridges) in the sky menu, also on the sign-in card.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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