Examine source code of GUID Resolver for Unity

{
  "manifest_version": 3,
  "name": "GUID Resolver for Unity",
  "version": "1.2.0",
  "description": "Resolve GUIDs from a unity project to their asset names",
  "browser_specific_settings": {
    "gecko": {
      "id": "unityguidresolver@deml.io",
      "strict_min_version": "58.0"
    }
  },
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "action": {
    "default_popup": "popup/popup.html"
  },
  "options_ui": {
    "page": "popup/popup.html",
    "open_in_tab": true
  },
  "host_permissions": [
    "<all_urls>"
  ],
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "scripting",
    "unlimitedStorage"
  ],
  "background": {
    "scripts": [
      "scripts/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "scripts/content.js"
      ],
      "css": [
        "styles/styles.css"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}