Examine source code of Leader Folder

{
  "name": "Leader Folder",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "leather folder.jpg"
    },
    "colors": {
      "frame": "rgba(19, 19, 19, 1)",
      "tab_background_text": "rgba(255, 145, 0, 1)",
      "toolbar": "rgba(69, 31, 17, 0.35)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(204, 192, 186, 0.46)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 145, 0, 1)"
    }
  }
}