Examine source code of NFT Marketplace

{
  "description": "Explore Thousands of Digital Arts and Collectibles.",
  "manifest_version": 2,
  "name": "NFT Marketplace",
  "version": "1.1.1",
  "icons": {
    "48": "icons/logo.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_icon": "icons/logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c434a7f5-2ee6-493d-acd0-5e668952dd35}"
    }
  }
}