Examine source code of Hail Eris

{
  "theme": {
    "images": {
      "theme_frame": "haileristop.jpg"
    },
    "colors": {
      "frame": "#9606cf",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Hail Eris",
  "manifest_version": 2,
  "description": "Now Eris has Her own persona! Download it and use it - what are you, a cabbage? Do it! ;)"
}