Examine source code of Simple Chibi Kitty

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#999faf",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Simple Chibi Kitty",
  "manifest_version": 2,
  "description": "Source of Chibi:\n猫 | KOTATU [pixiv] <a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/823ffeaeb8558d658ac8e285c71c1db26aedd59216490861c453a662998e96b2/https%3A//www.pixiv.net/member_illust.php%3Fmode=medium&amp;illust_id=48316332\">https://www.pixiv.net/member_illust.php?mode=medium&amp;illust_id=48316332</a>"
}