The previous Element-1 (full badge) approach produced a visible
warm-grey #1d1d1b square inside the cool-dark #1a1a23 sidebar — the
two near-blacks differ enough in hue to read as a foreign rectangle
in the slot.
The right answer (third time lucky): the SpaceSidebar's 40×40
rounded-[20px] tile already IS the dark squircle frame. logo.png now
composites the bare gradient mark at 75% on a transparent canvas:
the sidebar's tile bg shows through, the 25% padding keeps the mark
off the squircle edges and clear of the active-state ring, and there
is no foreign-bg colour conflict.
Refactored writeMaskablePng → writeCenteredMarkPng to share one code
path between the maskable PWA (opaque #1d1d1b background, 60% mark)
and the in-app logo (transparent background, 75% mark). Both use the
same composition pipeline; only canvas / scale / bg differ.
Only logo.png regenerated; other 21 outputs byte-identical
(determinism gate verified twice).
Jannis Braun
7a8d0ce0e2