Examine source code of Mossier Dark

{
  "name": "Mossier Dark",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "MossDarkFerns.jpg"
    },
    "colors": {
      "frame": "rgba(49, 144, 153, 0)",
      "tab_background_text": "rgba(55, 151, 139, 1)",
      "toolbar": "rgba(4, 40, 40, 1)",
      "bookmark_text": "rgba(55, 151, 139, 1)",
      "toolbar_field": "rgba(56, 153, 140, 1)",
      "toolbar_field_text": "rgba(2, 28, 28, 1)"
    }
  }
}