Examine source code of Moodify

{
  "manifest_version": 2,
  "name": "Moodify Vibe Color",
  "version": "1.0.0",
  "description": "Adjusts webpage aesthetics based on content mood - Created by Bilal Ashraf",
  "author": "Bilal Ashraf",
  "license": "MIT",
  "browser_action": {
    "default_popup": "popup/popup.html",
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png",
      "128": "icons/icon128.png"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "*://*/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*/*"
      ],
      "js": [
        "scripts/content-script.js"
      ]
    }
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "privacy_policy_url": "pages/privacy.html",
  "browser_specific_settings": {
    "gecko": {
      "id": "{2a6cf0db-7007-497c-8c34-d3334bfbe830}"
    }
  }
}