Image Autosizer

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Image Autosizer",
  "description": "Customize how images are displayed and controlled within your browser.",
  "manifest_version": 2,
  "version": "3.4",
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "icons": {
    "18": "img/icon_18.png",
    "64": "img/icon_64.png",
    "128": "img/icon_128.png"
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "js": [
        "contentscript.js"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_start"
    }
  ],
  "web_accessible_resources": [
    "contentstyle.css",
    "img/help_16.png",
    "img/help_22.png",
    "img/icon.png",
    "img/icon_18.png",
    "img/preferences.png",
    "img/quick_guide.png",
    "options.js",
    "options.css"
  ],
  "permissions": [
    "<all_urls>"
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'unsafe-eval';"
}