Examine source code of Warriors - Bluestar

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#000087",
      "tab_background_text": "#7094b5"
    }
  },
  "version": "2.0",
  "name": "Warriors - Bluestar",
  "manifest_version": 2,
  "description": "Bluestar from Warriors by Erin Hunter (background cats credited to <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/70d52a6cd4a9f86014b8105cdc63a409611aaa2b2b3d383715265e3b6621ceac/http%3A//graystripe64.deviantart.com\">graystripe64.deviantart.com</a>)"
}