Examine source code of Anime-13

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#f7e8e8",
      "tab_background_text": "#120107"
    }
  },
  "version": "2.0",
  "name": "Anime-13",
  "manifest_version": 2,
  "description": "繪師：呀呀"
}