Examine source code of Small Boat

{
  "theme": {
    "images": {
      "theme_frame": "smallboat_h.jpg"
    },
    "colors": {
      "frame": "#cfdde3",
      "tab_background_text": "#0c0d0d"
    }
  },
  "version": "2.0",
  "name": "Small Boat",
  "manifest_version": 2,
  "description": "going into the UP (Michigan)"
}