Examine source code of Colourful Night

{
  "theme": {
    "images": {
      "theme_frame": "colourfulstars.jpg"
    },
    "colors": {
      "frame": "#080707",
      "tab_background_text": "#ede6e6"
    }
  },
  "version": "2.0",
  "name": "Colourful Night",
  "manifest_version": 2,
  "description": "Great contrast of the colourful wave against the black night."
}