Replace the hardcoded dark STYLE_GRADIENT map, cream text, and fixed CTA
colors with theme tokens (background.secondary/tertiary, text.primary,
primary fill + onPrimary, themed borders/shadows). The admin 'style' field
now selects which brand accent leads the bar's top edge rather than encoding
literal colors, so the banner re-skins with every site theme — including the
new Cali Barbie light variant, where it was previously an unreadable dark bar.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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