Heratio Help Center article. Category: Reference.

Accessibility & WCAG 2.1 Compliance

Overview

Heratio conforms to WCAG 2.1 Level AA. Accessibility features are globally injected on every page via the theme — no per-plugin configuration needed.

Features

Screen Reader Support

• ARIA landmarks — banner, main, navigation, complementary, contentinfo
• ARIA live region — dynamic content changes announced via
• Collapsible facets — , ,
• Form validation — , , auto-linked
• Table headers — and auto-injected

Keyboard Navigation

• All interactive elements reachable via Tab
• Visible focus indicators (3px theme-accent outline with 2px offset, WCAG 2.4.7)
• Skip navigation link at top of every page
• Escape key closes modals and dropdowns
• Ctrl+Shift+V — toggle voice commands
• Ctrl+Shift+H — open voice help

Identify Input Purpose (WCAG 1.3.5)

• Login, registration, and password-reset forms expose programmatic input purpose via autocomplete (email, username, current-password, new-password) so assistive tech and password managers can autofill correctly.

Visual Accessibility

• Colour contrast meets AA minimum (4.5:1)
• respected — animations disabled
• mode supported (Windows High Contrast)

Voice Commands

• 100+ voice commands in 11 languages
• Dictation mode with punctuation support
• AI image description via local LLM (LLaVA)
• PDF transcript reading
• Video/audio transcript reading
• Enable/disable via voice or right-click type input

Accessibility Statement

A built-in accessibility statement page is linked from the site footer.

Automated Testing

Accessibility is verified using axe-core via Playwright:

• 11 test cases on key pages (homepage, browse, search, admin)
• Run:

Known Limitations

• Some base Heratio admin pages may not fully meet AA criteria
• Third-party viewers (IIIF, Google Translate) have their own limitations
• PDF documents may not be fully accessible