Vadym Samoilenko
a5cd1af982
Fix color contrast false positives; table caption INFO; dismiss button more visible
Color contrast:
- Sample pixels 8px apart vertically instead of adjacent horizontal pixels
- Filter out near-uniform pairs (|Δlum| < 0.08) — eliminates photo/gradient noise
- ERROR threshold: >60% of significant edges fail (was 15% of all pixels)
- WARNING threshold: >30% (was 5%)
- Returns early with 'image-only page' if <20 significant edges found
Tables:
- Caption warning downgraded WARNING → INFO (table may have visible title nearby)
- Does not count toward check pass/fail anymore
Dismiss button:
- Renamed 'Dismiss' → '✕ False Positive' (clearer intent)
- Added background color so it's visible against card
- font-size 11→12px, padding increased
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>