Examine source code of Adjusted rating calculator

{
  "manifest_version": 2,
  "name": "Weighted Rating Calculator",
  "version": "2",
  "description": "This calculator computes the Bayesian Weighted Rating for products based on their average rating and number of ratings. It uses a Bayesian average to balance the product's score with a global average, ensuring fairer comparisons for items with fewer ratings.",
  "icons": {
    "48": "icons/rating-48.png",
    "96": "icons/rating-96.png"
  },
  "permissions": [
    "storage",
    "tabs",
    "clipboardWrite"
  ],
  "sidebar_action": {
    "default_icon": "icons/rating-48.png",
    "default_title": "Weighted Rating Calculator",
    "default_panel": "index.html"
  },
  "browser_action": {
    "default_icon": "icons/rating-48.png",
    "default_title": "Open Weighted Rating Calculator"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{71e75ff8-c0d2-4803-b486-e236fe0d3650}"
    }
  }
}