Examine source code of Kuroko no Basuke 4

{
  "theme": {
    "images": {
      "theme_frame": "kurokonobasuke3.jpg"
    },
    "colors": {
      "frame": "#03fc88",
      "tab_background_text": "#05fcc2"
    }
  },
  "version": "2.0",
  "name": "Kuroko no Basuke 4",
  "manifest_version": 2,
  "description": "Anime"
}