Examine source code of hn-zen

{
  "manifest_version": 3,
  "name": "hn-zen",
  "version": "0.1",
  "description": "Add HN & Lobsters comments to browser history when clicking on link, to encourage reading articles first",
  "icons": {
    "128": "img/logo.png"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://news.ycombinator.com/*",
    "*://lobste.rs/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://news.ycombinator.com/*"
      ],
      "js": [
        "base.js",
        "hn.js"
      ]
    },
    {
      "matches": [
        "*://lobste.rs/*"
      ],
      "js": [
        "base.js",
        "lobsters.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "hn-zen@dimtion.fr",
      "strict_min_version": "57.0a1"
    }
  }
}