Examine source code of Six Elements

{
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "#ff00de",
      "tab_background_text": "#ff00de"
    }
  },
  "version": "2.0",
  "name": "Six Elements",
  "manifest_version": 2,
  "description": "From Warcraft 3 Elements TD"
}