Examine source code of Thru Time

{
  "theme": {
    "images": {
      "theme_frame": "ThruTime-Header.jpg"
    },
    "colors": {
      "frame": "#fff3e5",
      "tab_background_text": "#fff3e5"
    }
  },
  "version": "2.0",
  "name": "Thru Time",
  "manifest_version": 2
}