Examine source code of Original Resin Tracker

{
  "manifest_version": 2,
  "name": "Original Resin Tracker",
  "version": "1.1",
  "description": "Help track original resin timer in Genshin Impact.",
  "browser_specific_settings": {
    "gecko": {
      "id": "resin@ouroborus.org"
    }
  },
  "icons": {
    "80": "resin.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_icon": "resin.png",
    "default_title": "Original Resin Tracker",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "open_in_tab": false
  },
  "background": {
    "page": "background.html",
    "persistent": true
  }
}