Examine source code of OpenImage Viewer

{
  "icons": {
    "16": "icon16.plasmo.56f5f4d4.png",
    "32": "icon32.plasmo.78fc6bb6.png",
    "48": "icon48.plasmo.6a305d4c.png",
    "64": "icon64.plasmo.c5f1bad8.png",
    "128": "icon128.plasmo.f59a86f4.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.56f5f4d4.png",
      "32": "icon32.plasmo.78fc6bb6.png",
      "48": "icon48.plasmo.6a305d4c.png",
      "64": "icon64.plasmo.c5f1bad8.png",
      "128": "icon128.plasmo.f59a86f4.png"
    }
  },
  "version": "2.0.4",
  "author": "OpenImage Viewer Maintainers (Community fork inspired by Ademking/BetterViewer)",
  "name": "OpenImage Viewer",
  "description": "Fast advanced image viewer for Chrome & Edge with automatic image-tab detection",
  "background": {
    "scripts": [
      "static/background/index.js"
    ]
  },
  "permissions": [
    "storage",
    "contextMenus",
    "tabs",
    "webRequest",
    "webNavigation"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.a5903d29.js"
      ],
      "all_frames": true,
      "run_at": "document_end",
      "css": []
    }
  ],
  "host_permissions": [
    "https://*/*",
    "http://*/*",
    "file:///*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "openimageviewer@community",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}