Examine source code of Wolfenstein - ET

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#300000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Wolfenstein - ET",
  "manifest_version": 2,
  "description": "I've made this Personas for everyone who likes to play Wolfenstein: Enemy Territory.\nI know the game is old, but it's nice.\n\nTry it some time and join one of the -TWC| servers... :)"
}