Examine source code of Sad & Gold

{
  "theme": {
    "images": {
      "theme_frame": "Persona_Header_YonedaDrawcpia.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000000"
    }
  },
  "version": "2.0",
  "name": "Sad & Gold",
  "manifest_version": 2,
  "description": "Illustration by Yoneda Kou. Yakuza Yashiro from Don't Stay Gold, Tadayoedo Shizumazu, and Saezuru Tori wa Habatakanai. NITRO Koutetsu (ニトロ攻鉄). ヨネダコウ."
}