Examine source code of Dyxitool

{
  "manifest_version": 2,
  "name": "Dyxitool",
  "short_name": "Dyxitool",
  "version": "1.2.1",
  "author": "SamClercky",
  "description": "The extension to help people with dyslexia. All features are tested on real people with dyslexia.",
  "icons": {
    "16": "img/icons/icon16.png",
    "32": "img/icons/icon32.png",
    "48": "img/icons/icon48.png",
    "128": "img/icons/icon128.png"
  },
  "applications": {
    "gecko": {
      "id": "dyxitool@samclercky.be"
    }
  },
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "lib/browser-polyfill.min.js",
        "js/common/firefoxpatch.js",
        "js/common/logging.js",
        "js/common/onload.js",
        "js/common/Color.js",
        "js/common/CommunicationInterface.js",
        "js/common/iStorage.js",
        "js/content_scripts/settingsState.js",
        "js/content_scripts/insertCssFont.js",
        "js/content_scripts/cscreen.js",
        "js/content_scripts/main.js"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "fonts/OpenDyslexic-Regular.otf",
    "fonts/OpenDyslexic-Italic.otf",
    "fonts/OpenDyslexic-Bold.otf",
    "fonts/OpenDyslexic-BoldItalic.otf",
    "fonts/OpenDyslexicMono-Regular.otf"
  ],
  "browser_action": {
    "default_icon": "img/icons/icon16.png",
    "default_popup": "html/option_page-firefox.html",
    "default_title": "Dyxitool",
    "browser_style": true
  },
  "options_ui": {
    "page": "html/option_page-firefox.html",
    "browser_style": true
  },
  "default_locale": "en",
  "background": {
    "scripts": [
      "js/background/main.js"
    ]
  }
}