Examine source code of Scarlet Red / Kaneki

{
  "name": "Scarlet Red ",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled(1).png"
    },
    "colors": {
      "frame": "rgba(0, 1, 3, 0)",
      "tab_background_text": "rgba(217, 26, 26, 1)",
      "toolbar": "rgba(3, 0, 0, 0)",
      "bookmark_text": "rgba(217, 26, 26, 1)",
      "toolbar_field": "rgba(0, 0, 0, 0.29)",
      "toolbar_field_text": "rgba(217, 26, 26, 1)",
      "tab_line": "rgba(217, 26, 26, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ad500e3a-93d2-4bc0-a308-6545adffa591}"
    }
  }
}