Examine source code of Tendril

{
  "theme": {
    "images": {
      "theme_frame": "tendrils.jpg"
    },
    "colors": {
      "frame": "#b2bdbb",
      "tab_background_text": "#b2bdbb"
    }
  },
  "version": "2.0",
  "name": "Tendril",
  "manifest_version": 2,
  "description": "I thought I'd make my own person.. got the idea from the persona GreenLight.. don't know who made it though, can't find it again :l"
}