Examine source code of Sunao x Sora

{
  "theme": {
    "images": {
      "theme_frame": "header-sunao-sora.jpg"
    },
    "colors": {
      "frame": "rgba(229,230,232,1)",
      "tab_background_text": "#000"
    }
  },
  "version": "2.0",
  "name": "Sunao x Sora",
  "manifest_version": 2,
  "description": "Cute yaoi header of the couple Hashiba Sora and Sunao Fujimori from the anime Sukinamonowa Sukidakara Shouganai!! or Sukisho!. The characters are NOT mine but I don't know the creators name either... I just made the design. Hope you like it."
}