The carousel gold and the grid blue were hardcoded in the dashboard's CSS,
which was fine while carousel meant Recognition and grid meant Recertification.
Now that any type can take either style, a type arrived wearing somebody else's
colour: a green Kudos row came out gold, and every grid row came out
Recertification blue regardless of what was picked in the type settings.
Row headings now take the type's colour, and cards and tiles take theirs
through a --accent property, so a shared category row shows a red incident tile
beside a purple change tile. Heading text colour is computed from the
background's luma rather than listed per colour, since a site picks its own
hexes - gold needs dark text, navy needs white.
The card backgrounds were gold- and blue-tinted gradients; they are neutral
dark now so the accent is what carries the colour. The old values remain as CSS
fallbacks for a card that somehow arrives with no type.
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