Examine source code of R.O.Y.

{
  "name": "R.O.Y.",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "Yellow.jpg"
    },
    "colors": {
      "frame": "rgba(245, 147, 0, 1)",
      "tab_background_text": "rgba(255, 94, 0, 1)",
      "toolbar": "rgba(250, 0, 0, 1)",
      "bookmark_text": "rgba(252, 195, 8, 1)",
      "toolbar_field": "rgba(255, 102, 0, 1)",
      "toolbar_field_text": "rgba(255, 0, 0, 1)"
    }
  }
}