Examine source code of Rainiday

{
  "theme": {
    "images": {
      "theme_frame": "Copyofsm.JPG"
    },
    "colors": {
      "frame": "#a8dbbd",
      "tab_background_text": "#072102"
    }
  },
  "version": "2.0",
  "name": "Rainiday",
  "manifest_version": 2,
  "description": "good stuff from the original creator of this wallpaper."
}