Examine source code of Skadi Arknights

{
  "name": "Skadi Arknights",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "skadi-arknights-anime-girl-uhdpaper.com-4K-6.550 - Copy.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 0)",
      "tab_background_text": "rgba(255, 255, 255, 0.73)",
      "toolbar": "rgba(255, 255, 255, 0.37)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(78, 142, 201, 0)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)"
    }
  }
}