Root cause (verified against the live compiled bundle): Odoo's backend
CSS never DEFINES --bs-body-color / --bs-secondary-color / --bs-*-bg as
custom properties (0 definitions; they're only referenced). So every
color: var(--bs-body-color, #1d1d1f) — and the earlier --bs-secondary-color
swap — resolved to the dark hex fallback in BOTH light and dark mode.
That's why the prior swaps never worked. Backend dark mode here is runtime
[data-bs-theme=dark] + SCSS literals, not those vars.
Fix: the finish-block dialog text now INHERITS the modal's theme-correct
colour (same as the readable title + "Count the Parts" list items) — the
broken line was the only one setting an explicit var() colour. Tinted
banners use translucent rgba() instead of color-mix-with-undefined-var.
Verified in the served bundle: o_fp_finish_block_msg{font-weight:500;}
(no colour override).
CLAUDE.md dark-mode guidance corrected (it had wrongly recommended those
undefined vars).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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