Examine source code of Roxo

{
  "name": "Roxo",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Negro.png"
    },
    "colors": {
      "frame": "rgba(10, 10, 10, 1)",
      "tab_background_text": "rgba(219, 219, 219, 1)",
      "toolbar": "rgba(26, 26, 26, 1)",
      "bookmark_text": "rgba(219, 219, 219, 1)",
      "toolbar_field": "rgba(10, 10, 10, 1)",
      "toolbar_field_text": "rgba(219, 219, 219, 1)",
      "tab_line": "rgba(154, 64, 255, 1)"
    }
  }
}