Examine source code of Iron Man Original

{
  "theme": {
    "images": {
      "theme_frame": "BrowserHeaderIronMan.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#fcfcfc"
    }
  },
  "version": "2.0",
  "name": "Iron Man Original",
  "manifest_version": 2,
  "description": "I created this persona using a dark grey and light grey gradient. I then made the font the other color of the gradient going the other way"
}