Examine source code of The Gamercat

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#ccc8c8",
      "tab_background_text": "#363535"
    }
  },
  "version": "2.0",
  "name": "The Gamercat",
  "manifest_version": 2,
  "description": "I do not own any of the images in this theme.  The Gamercat is owned by Samantha Whitten.  I'm just a fan!"
}