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detector: hover-state contrast + color-mix/compositing, radial-halo rule, top/bottom stripe variant, file:// browser scans

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Four changes driven by human design review of eval artifacts:

1. Static engine contrast fidelity (nav-CTA cascade miss):
   - parseAnyColor evaluates color-mix() (premultiplied sRGB mix; exact
     for the dominant `color-mix(in oklab, C n%, transparent)` chip form)
   - extractStaticColor captures color-mix() balanced instead of plucking
     "transparent" out of the expression
   - resolveBackground composites translucent layers over the opaque base
     in both engines instead of skipping (static) or returning them
     as-if-opaque (browser)
   - NEW hover pass in the static cascade: :hover rules are matched via
     state-stripped selectors, merged per-property against the resting
     cascade with real specificity, and checked for WCAG contrast on
     styled controls (checkHoverContrast). Catches the recurring miss
     where a broader selector (.nav-links a:hover) beats the CTA's own
     hover color and drops the pair below AA.

2. New `radial-halo` slop rule: chromatic radial-gradient wash (visible
   saturated center -> transparent) as a decorative background on a dark
   page. Exempts achromatic vignettes, opaque-end sheens, px-stop dot
   textures, url() photo layers, and translucent (<0.7 alpha) staged-
   light washes. Separate id from dark-glow so dashboards track the
   gradient-drawn variant independently.

3. side-tab horizontal variant: 3-12px chromatic border-top/bottom (and
   top/bottom-anchored full-width pseudo stripes) on cards/badges flag as
   side-tab. Exempt: tablist/nav/aria-selected underlines, link/button
   affordances, table cells, hr, state-conditional pseudo stripes, and
   >12px bands. Badge-shaped spans (own visible background) participate.

4. CLI: file:// URLs route to the Puppeteer browser engine (~2s on a
   50KB page), and detect --json findings now carry the registry
   `category` field so downstream QA loops can separate mechanical slop
   tells from judgment calls.

Fixture policy update: flat 3px top-accent cards moved from should-pass
to flag columns; tablist-underline and 16px-band pass cases added.
Browser bundle regenerated.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Paul Bakaus
2026-07-12 18:18:33 -07:00
co-authored by Claude Fable 5
parent be03fe734a
commit 1a4b5c2fa2
12 changed files with 1043 additions and 106 deletions
Download Patch File Download Diff File Expand all files Collapse all files
cli/engine/engines/regex/detect-text.mjs
+9 -1
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@@ -2,7 +2,7 @@ import { GENERIC_FONTS, OVERUSED_FONTS } from '../../shared/constants.mjs';
import { isNeutralColor } from '../../shared/color.mjs';
import { extractGoogleFontFamilies } from '../../shared/fonts.mjs';
import { checkSourceDesignSystem } from '../../design-system.mjs';
import { scanCssTextForGlow } from '../../rules/checks.mjs';
import { scanCssTextForGlow, scanCssTextForRadialHalo } from '../../rules/checks.mjs';
import { isFullPage } from '../../shared/page.mjs';
import { applyInlineIgnores } from '../../shared/inline-ignores.mjs';
import { finding } from '../../findings.mjs';
@@ -326,6 +326,14 @@ const REGEX_ANALYZERS = [
const lines = content.substring(0, hits[0].index).split('\n');
return [finding('dark-glow', filePath, hits[0].snippet, lines.length)];
},
// Radial-gradient background halo on a dark page (the gradient sibling
// of the dark-glow shadow tell).
(content, filePath) => {
const hits = scanCssTextForRadialHalo(content);
if (hits.length === 0) return [];
const lines = content.substring(0, hits[0].index).split('\n');
return [finding('radial-halo', filePath, hits[0].snippet, lines.length)];
},
];
// ---------------------------------------------------------------------------