Examine source code of Noiglaser

{
  "name": "Noiglaser",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "anonymous-wallpaper.jpg"
    },
    "colors": {
      "frame": "rgba(100, 101, 102, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(41, 41, 41, 1)",
      "bookmark_text": "rgba(184, 184, 184, 1)",
      "toolbar_field": "rgba(173, 173, 173, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)"
    }
  }
}