Examine source code of Iron Rose

{
  "name": "Praline",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "praline-2.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(242, 242, 242, 0.45)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(50, 61, 49, 0.6)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 0.7)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{ce6b36c7-56c2-4016-865d-447ae533c06b}"
    }
  }
}