Examine source code of Our Big Cats

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Our Big Cats",
  "manifest_version": 2,
  "description": "A line up of the big cats of today, though we do not know for how long. The way things are going in our world with hunting for sport or for medical reasons, they will disappear faster and faster. Protect wildlife.\nToo bad the people in control of themes here can't place this into featured themes. Pretty bias and lame if you ask me."
}