Examine source code of Sky Stripes

{
  "theme": {
    "images": {
      "theme_frame": "mavi-firefox-header3.png"
    },
    "colors": {
      "frame": "#6dcde8",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Sky Stripes",
  "manifest_version": 2,
  "description": "A simple, blue theme for the ones who cannot resist bright colors."
}