Examine source code of Immich Companion

{
  "manifest_version": 3,
  "name": "Immich Companion",
  "version": "0.8.1",
  "description": "Save images and videos from any page to your self-hosted Immich and turn the new tab into a memory feed.",
  "browser_specific_settings": {
    "gecko": {
      "id": "immich-companion@bjoernch.dev",
      "strict_min_version": "121.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "contextMenus",
    "storage",
    "notifications",
    "activeTab",
    "alarms",
    "clipboardWrite",
    "downloads"
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "type": "module"
  },
  "action": {
    "default_title": "Immich Companion",
    "default_popup": "pages/popup.html",
    "default_icon": {
      "16": "icons/icon-16.png",
      "48": "icons/icon-48.png",
      "128": "icons/icon-128.png"
    }
  },
  "icons": {
    "16": "icons/icon-16.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png"
  },
  "options_ui": {
    "page": "pages/options.html",
    "open_in_tab": true
  },
  "chrome_url_overrides": {
    "newtab": "pages/newtab.html"
  },
  "commands": {
    "_execute_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+L",
        "mac": "Command+Shift+L"
      },
      "description": "Open Immich Companion popup"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*.png"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ]
}