Examine source code of Mac OS Vision

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#615649",
      "tab_background_text": "#ebded9"
    }
  },
  "version": "2.0",
  "name": "Mac OS Vision",
  "manifest_version": 2,
  "description": "Simple theme made in Mac OS X 10.6.8 for the not-so-modern person. \n\nI found that a lot of the themes I were trying to look for either didn't exist or weren't at all what I needed, so I made myself a theme based on what I wanted. Now the rest of the world can use it just like me!\n\nWhile creating this theme I decided to stick to the four words I used to describe it in the first place: Simple, elegant, efficient, and classic. I hope this theme follows those four words. Enjoy!\n\n-Xchofica"
}