Examine source code of cute japan comic

{
  "theme": {
    "images": {
      "theme_frame": "comic1PNG.png"
    },
    "colors": {
      "frame": "#0d0d0d",
      "tab_background_text": "#9efaa4"
    }
  },
  "version": "2.0",
  "name": "cute japan comic",
  "manifest_version": 2
}