Examine source code of Borderlands

{
  "theme": {
    "images": {
      "theme_frame": "borderlands.jpg"
    },
    "colors": {
      "frame": "#730202",
      "tab_background_text": "#050505"
    }
  },
  "version": "2.0",
  "name": "Borderlands",
  "manifest_version": 2,
  "description": "Theme for the new Borderlands Game, if you are so inclined."
}