WCAG 2.2 Level AA Compliance Attestation
DevDiff aligns with the Web Content Accessibility Guidelines (WCAG) 2.2 Level AA standards across all documentation pages, VS Code extension webviews, and custom SDK component libraries.
WCAG 2.2 Level AA Success Criteria Alignment
| WCAG Criteria | Criterion Name | DevDiff Technical Implementation |
|---|---|---|
| 1.4.3 | Contrast (Minimum) | Enforces a minimum contrast ratio of 4.5:1 for standard text and 3:1 for large text/UI components |
| 1.4.10 | Reflow | Layouts reflow smoothly without horizontal scrolling at 200% text zoom (up to 1280px viewport width) |
| 2.1.1 | Keyboard | 100% of user interface features are operable through a keyboard interface without requiring specific timings |
| 2.2.2 | Pause, Stop, Hide | Background animations and live updates respect system prefers-reduced-motion settings |
| 2.4.7 | Focus Visible | Any keyboard operable user interface has an explicitly visible focus indicator ring |
| 3.3.2 | Labels or Instructions | Input fields, search controls, and form elements include persistent descriptive labels |
Reduced Motion Support
DevDiff respects operating system preferences for reduced motion (prefers-reduced-motion: reduce), automatically disabling non-essential transition animations.