Examine source code of AI Image Upscaler

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "version": "1.0.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "default_locale": "en",
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "cookies",
    "downloads",
    "https://ainanobanana.co/*"
  ],
  "web_accessible_resources": [
    "bridge-availability.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "image-upscaler-extensions@ainanobanana.co"
    }
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-scripts/content.js"
      ]
    },
    {
      "matches": [
        "https://ainanobanana.co/extension/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/extension-bridge.js"
      ]
    }
  ],
  "browser_action": {
    "default_title": "__MSG_browserActionTitle__",
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "128": "icon/128.png"
    }
  }
}