Examine source code of GOSH Price Tracker

{
  "manifest_version": 3,
  "name": "GOSH Price Tracker",
  "version": "2.2",
  "description": "Track any price, of any product, at any store.",
  "browser_specific_settings": {
    "gecko": {
      "id": "guy@gosh.app"
    }
  },
  "permissions": [
    "contextMenus",
    "activeTab",
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "icon_16.png",
      "32": "icon_32.png",
      "48": "icon_48.png",
      "128": "icon_128.png"
    }
  },
  "icons": {
    "16": "icon_16.png",
    "32": "icon_32.png",
    "48": "icon_48.png",
    "128": "icon_128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "logo_white.svg",
        "icon_16.png",
        "icon_32.png",
        "icon_48.png",
        "icon_128.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "mark.min.js",
        "content.js"
      ],
      "css": [
        "styles.css"
      ],
      "run_at": "document_start"
    }
  ]
}