Examine source code of Serpantine

{
  "name": "Serpantine",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "b9e17e6c7f12d9b50e2f720bbdd6f2dd.jpg"
    },
    "colors": {
      "toolbar": "rgba(10, 10, 10, 0.35)",
      "toolbar_field": "rgba(0, 0, 0, 0.34)",
      "toolbar_field_text": "rgba(15, 95, 107, 0.97)",
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(15, 95, 107, 0.97)",
      "bookmark_text": "rgba(15, 95, 107, 0.97)"
    }
  }
}