Examine source code of 1041uuu River Theme

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#004c5a",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "1041uuu River Theme",
  "manifest_version": 2,
  "description": "<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/e9767fd8205097a30698281306f2f676580fce87d89c30e8315423cf4dc5a51c/http%3A//1041uuu.tumblr.com/\">http://1041uuu.tumblr.com/</a>"
}