Examine source code of Gros

{
  "name": "Gros",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "16.jpg"
    },
    "colors": {
      "frame": "rgba(130, 217, 108, 1)",
      "tab_background_text": "rgba(131, 153, 128, 1)",
      "toolbar": "rgba(52, 71, 133, 1)",
      "bookmark_text": "rgba(24, 31, 219, 1)",
      "toolbar_field": "rgba(156, 207, 54, 1)",
      "toolbar_field_text": "rgba(30, 209, 89, 1)"
    }
  }
}