Examine source code of iannlPlus Dark

{
  "name": "iannlPlus Dark",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "iannl header dark.jpg"
    },
    "colors": {
      "frame": "rgba(71, 39, 6, 1)",
      "tab_background_text": "rgba(51, 14, 0, 0.8)",
      "toolbar": "rgba(77, 26, 8, 0.8)",
      "bookmark_text": "rgba(66, 7, 5, 1)",
      "toolbar_field": "rgba(87, 38, 0, 0.6)",
      "toolbar_field_text": "rgba(41, 12, 0, 1)",
      "tab_line": "rgba(66, 3, 1, 0.4)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{24f166e2-7ee8-4342-b2eb-0f14240a50f6}"
    }
  }
}