Examine source code of Aurora Australis Mod

{
  "theme": {
    "images": {
      "theme_frame": "aurorapersona3.jpg"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Aurora Australis Mod",
  "manifest_version": 2,
  "description": "Based on <a href=\"https://outgoing.prod.mozaws.net/v1/76e891d3b89990a99659f08ac9c3d17feb328a01e0a2016b7971ae225247486d/http%3A//www.getpersonas.com/en-US/persona/67532\" rel=\"nofollow\">http://www.getpersonas.com/en-US/persona/67532</a>. It's the same, just the change the Accent color to look better with AIO Sidebar."
}