Examine source code of Led Zeppelin Theme

{
  "name": "Led Zeppelin",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "ledzep-3.png"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(87, 87, 87, 0.73)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(37, 59, 59, 0.41)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 128, 0, 0.43)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{21236210-e48a-4e29-bc4e-a0846e283825}"
    }
  }
}