Examine source code of Lucifer

{
  "name": "Lucifer",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "e5eedd176ff89ead93ac41017b4f895f[1].jpg"
    },
    "colors": {
      "frame": "rgba(39, 56, 47, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(25, 42, 48, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(137, 162, 171, 1)",
      "toolbar_field_text": "rgba(98, 86, 173, 1)"
    }
  }
}