Examine source code of Spell Checking — ភាសាខ្មែរ-Khmerlang

{
  "version": "5.1.1",
  "manifest_version": 2,
  "name": "Spell Checking — ភាសាខ្មែរ-Khmerlang",
  "short_name": "Khmerlang",
  "homepage_url": "https://khmerlang.com/",
  "options_page": "options.html",
  "background": {
    "scripts": [
      "background.bundle.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon-32.png"
  },
  "icons": {
    "16": "icon-16.png",
    "32": "icon-32.png",
    "48": "icon-48.png",
    "64": "icon-64.png",
    "128": "icon-128.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "js": [
        "contentScript.bundle.js"
      ],
      "css": [
        "fonts.css",
        "content.styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "devtools_page": "devtools.html",
  "web_accessible_resources": [
    "fonts/*.woff2",
    "Hanuman-Bold.ttf",
    "Hanuman-Regular.ttf",
    "content.styles.css",
    "fonts.css",
    "logo.svg",
    "khmerlang-logo.png",
    "icon-has-errors.svg",
    "icon-no-error.svg",
    "icon-reach-limit.svg",
    "icon-typing.svg",
    "icon-validating.svg",
    "icon-network-errors.svg",
    "icon-token-invalid.svg",
    "close.svg",
    "settings.svg",
    "text-short.svg",
    "no-suggestion.svg",
    "icon-128.png",
    "icon-64.png",
    "icon-48.png",
    "icon-32.png",
    "icon-16.png",
    "banner_default_animate.gif"
  ],
  "permissions": [
    "activeTab",
    "storage",
    "contextMenus",
    "http://*/*",
    "https://*/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "addon@khmerlang.com",
      "strict_min_version": "109.0"
    }
  }
}