Examine source code of Blue Gradient and Blues

{
  "theme": {
    "images": {
      "theme_frame": "BrowserHeaderBlueGradientandBlues.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Blue Gradient and Blues",
  "manifest_version": 2,
  "description": "I created a blue gradient on the top and and then created a flat dark blue color on the bottom. I also created the bottom with a flat dark blue blue"
}