Examine source code of Nyanpire Group Small theme

{
  "theme": {
    "images": {
      "theme_frame": "nyanpiresmallpersona.png"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Nyanpire Group Small theme",
  "manifest_version": 2,
  "description": "Adapted for thinner headers.\n\nNyanpire is a doujinshi manga series created by Yukiusa that was then turned into a twelve part animated series by Gonzo.\n\nPlot (from wiki): A small abandoned kitten is rescued by a vampire, who feeds him some of his blood, allowing him to be reborn as a vampire cat named Nyanpire. The series follows Nyanpire as he spends his days living with his human owner, Misaki, and meeting other cats."
}