Examine source code of Old Script

{
  "name": "Old Script",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "OldScriptHCustom.jpg"
    },
    "colors": {
      "frame": "rgba(221, 213, 176, 1)",
      "tab_background_text": "rgba(46, 22, 2, 1)",
      "toolbar": "rgba(221, 224, 177, 0)",
      "bookmark_text": "rgba(46, 22, 2, 1)",
      "toolbar_field": "rgba(224, 217, 179, 0.05)",
      "toolbar_field_text": "rgba(46, 22, 2, 1)",
      "tab_line": "rgba(46, 22, 2, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{361b5b2d-f8a8-4a24-8758-58cc09e16f32}"
    }
  }
}