Examine source code of Coldplay_invert

{
  "theme": {
    "images": {
      "theme_frame": "coldplayhandsupheader.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Coldplay_invert",
  "manifest_version": 2,
  "description": "It's coldplay. as always, ignore the left hand side, it looks good in the browser."
}