Examine source code of Discogs Enhancer

{
  "manifest_version": 3,
  "name": "Discogs Enhancer",
  "short_name": "Discogs Enhancer",
  "description": "Enhance your Discogs experience with dark themes, seller tools, price comparisons, currency conversion, powerful filters, and more!",
  "version": "4.17.3",
  "author": "Matthew Salcido",
  "homepage_url": "https://www.discogs-enhancer.com",
  "action": {
    "default_icon": {
      "16": "img/icon_16.png",
      "32": "img/icon_32.png",
      "48": "img/icon_48.png",
      "128": "img/icon_128.png"
    },
    "default_title": "Discogs Enhancer",
    "default_popup": "html/popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.discogs.com/*"
      ],
      "css": [
        "css/dark-theme.css"
      ],
      "js": [
        "js/extension/ExtPay.js",
        "js/user-preferences.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ],
  "permissions": [
    "activeTab",
    "contextMenus",
    "scripting",
    "storage"
  ],
  "icons": {
    "16": "img/icon_16.png",
    "32": "img/icon_32.png",
    "48": "img/icon_48.png",
    "128": "img/icon_128.png"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "css/*",
        "fonts/*",
        "js/extension/dependencies/*",
        "js/extension/features/*",
        "js/collection-explorer-bundle.js"
      ],
      "matches": [
        "*://*.discogs.com/*"
      ]
    }
  ],
  "background": {
    "scripts": [
      "js/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{190dbc44-5dee-4ad4-86e9-a38d7a2d1c61}",
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  },
  "host_permissions": [
    "*://*.discogs.com/*"
  ]
}