Examine source code of Abstract splash

{
  "theme": {
    "images": {
      "theme_frame": "heder1.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Abstract splash",
  "manifest_version": 2,
  "description": "Abstract splash, red, gray, black and white",
  "browser_specific_settings": {
    "gecko": {
      "id": "{59b43a62-8c43-4a3e-a19f-4db5f571ad0b}"
    }
  }
}