Image transform

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Image transform",
  "version": "1.0.0",
  "manifest_version": 2,
  "description": " Rotate images",
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "css": [
        "okawa.css"
      ]
    }
  ],
  "icons": {
    "32": "32.png",
    "48": "48.png",
    "128": "128.png"
  }
}