Examine source code of Kemono Friends

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#595959"
    }
  },
  "version": "2.0",
  "name": "Kemono Friends",
  "manifest_version": 2,
  "description": "Kemono Friends Theme\nOriginal image:\n<a rel=\"nofollow\" href=\"https://outgoing.prod.mozaws.net/v1/cddf994858bdd9dd4ec9e60c2a958a8c035a5eacf3e532a2164faa06b98e6c25/https%3A//wall.alphacoders.com/big.php%3Fi=817195\">https://wall.alphacoders.com/big.php?i=817195</a>"
}