Examine source code of AccNotes - BITV Accessibility Testing

{
  "manifest_version": 2,
  "name": "AccNotes - BITV Accessibility Testing",
  "version": "1.0.2",
  "description": "Browser extension for BITV accessibility testing. Automatic barrier detection & complete documentation workflow - from problem to BITV-compliant report in 30 seconds.",
  "author": "Heiko Folkerts",
  "homepage_url": "https://github.com/heikofolkerts/AccNotes",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "permissions": [
    "contextMenus",
    "tabs",
    "activeTab",
    "storage",
    "file://*/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "web_accessible_resources": [
    "note.html",
    "note.js",
    "notes-overview.html",
    "notes-overview.js",
    "accessibility-check-results.html",
    "accessibility-check-results.js",
    "help.html",
    "help.js",
    "styles/modern-theme.css",
    "scripts/theme-toggle.js",
    "scripts/bitv-catalog.js",
    "scripts/storage-helper.js",
    "scripts/barrier-detector.js",
    "scripts/screenshot-helper.js",
    "scripts/libs/jspdf.umd.min.js"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "scripts/barrier-detector.js",
        "scripts/screenshot-helper.js",
        "content.js"
      ],
      "run_at": "document_end",
      "all_frames": true
    }
  ],
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "browser_specific_settings": {
    "gecko": {
      "id": "{8e580d87-65bf-47ba-a8e1-925682739035}"
    }
  }
}