Examine source code of The Magic Eye

{
  "theme": {
    "images": {
      "theme_frame": "eye.jpg"
    },
    "colors": {
      "frame": "#ff0000",
      "tab_background_text": "#00ffe6"
    }
  },
  "version": "2.0",
  "name": "The Magic Eye",
  "manifest_version": 2,
  "description": "the eye"
}