Examine source code of Dororo

{
  "name": "Dororo",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dororo-pv-4.jpg"
    },
    "colors": {
      "frame": "rgba(27, 80, 194, 1)",
      "tab_background_text": "rgba(89, 43, 43, 1)",
      "toolbar": "rgba(43, 35, 35, 1)",
      "bookmark_text": "rgba(168, 40, 40, 1)",
      "toolbar_field": "rgba(252, 247, 247, 0.47)",
      "toolbar_field_text": "rgba(240, 228, 228, 1)"
    }
  }
}