[1] "<div class=\"form-group shiny-input-container\">\n  <label class=\"control-label\" id=\"x-label\" for=\"x\">Color scheme</label>\n  <div>\n    <select class=\"shiny-input-select form-control\" id=\"x\"><optgroup label=\"qualitative\">\n<option value=\"discreterainbow\" selected>discreterainbow</option>\n<option value=\"bright\">bright</option>\n<option value=\"vibrant\">vibrant</option>\n<option value=\"muted\">muted</option>\n<option value=\"highcontrast\">highcontrast</option>\n<option value=\"mediumcontrast\">mediumcontrast</option>\n<option value=\"light\">light</option>\n<option value=\"okabeito\">okabeito</option>\n</optgroup>\n<optgroup label=\"sequential\">\n<option value=\"YlOrBr\">YlOrBr</option>\n<option value=\"iridescent\">iridescent</option>\n<option value=\"incandescent\">incandescent</option>\n<option value=\"smoothrainbow\">smoothrainbow</option>\n</optgroup>\n<optgroup label=\"diverging\">\n<option value=\"sunset\">sunset</option>\n<option value=\"nightfall\">nightfall</option>\n<option value=\"BuRd\">BuRd</option>\n<option value=\"PRGn\">PRGn</option>\n</optgroup></select>\n    <script type=\"application/json\" data-for=\"x\">{\"plugins\":[\"clear_button\",\"selectize-plugin-a11y\"]}</script>\n  </div>\n</div>"
