Examine source code of Echo - Save to Your Feed

{
  "manifest_version": 3,
  "name": "Echo Web & Pinterest Board Importer",
  "short_name": "Echo Import",
  "version": "1.2.12",
  "description": "Import Pinterest boards and save visual inspiration from across the web into Echo.",
  "icons": {
    "16": "assets/icon-16.png",
    "48": "assets/icon-48.png",
    "128": "assets/icon-128.png"
  },
  "permissions": [
    "contextMenus",
    "storage",
    "unlimitedStorage",
    "alarms",
    "activeTab",
    "scripting",
    "tabs"
  ],
  "host_permissions": [
    "https://*.supabase.co/*",
    "https://pinterest.com/*",
    "https://*.pinterest.com/*",
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "dist/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "dist/content.js"
      ],
      "css": [
        "dist/content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "action": {
    "default_popup": "popup.html",
    "default_icon": {
      "16": "assets/icon-16.png",
      "48": "assets/icon-48.png"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*",
        "auth-callback.html",
        "dist/content.css",
        "dist/auth-callback.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "content_security_policy": {
    "extension_pages": "script-src 'self'; object-src 'self'; connect-src https://*.supabase.co https://myechoboard.com https://*.pinterest.com"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "echo-save-to-feed@myechoboard.com",
      "data_collection_permissions": {
        "required": [
          "authenticationInfo",
          "websiteContent",
          "websiteActivity"
        ]
      },
      "strict_min_version": "140.0"
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}