Examine source code of Waterfall - light

{
  "theme": {
    "images": {
      "theme_frame": "Waterfall.jpg"
    },
    "colors": {
      "frame": "#2e5e27",
      "tab_background_text": "#24538a"
    }
  },
  "version": "2.0",
  "name": "Waterfall - light",
  "manifest_version": 2
}