Examine source code of Orange Raft

{
  "theme": {
    "images": {
      "theme_frame": "OrangeRaft.jpg"
    },
    "colors": {
      "frame": "#ff5900",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Orange Raft",
  "manifest_version": 2,
  "description": "Here is a bikini model relaxing at sea in an inflatable orange raft. The main part of this picture is in the upper 80 pixels, so it won't matter much if it's cropped below that."
}