Examine source code of Sparky hearts

{
  "theme": {
    "images": {
      "theme_frame": "Sparkyhearts.jpg"
    },
    "colors": {
      "frame": "#bfbfbf",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sparky hearts",
  "manifest_version": 2,
  "description": "A sparkley hearts persona well suited for creative people who are looking to have a cool firefox."
}