Examine source code of iPod Ad Gray

{
  "name": "iPod Ad Gray",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled-1.png"
    },
    "colors": {
      "frame": "rgba(48, 48, 255, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{49acbc3f-f09d-4249-a999-48a373557cf4}"
    }
  }
}