Examine source code of Dark Beige

{
  "name": "Dark Beige ",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "header.jpg"
    },
    "colors": {
      "frame": "rgba(119, 78, 71, 1)",
      "tab_background_text": "rgba(232, 201, 196, 1)",
      "toolbar": "rgba(147, 101, 93, 1)",
      "bookmark_text": "rgba(232, 201, 196, 1)",
      "toolbar_field": "rgba(119, 78, 71, 1)",
      "toolbar_field_text": "rgba(232, 201, 196, 1)"
    }
  }
}