Build a focused toolbar by specifying exact button names in the toolbar attribute string. This lets you tailor the editing experience to match your application requirements and reduce visual clutter.
Define toolbar buttons as a comma-separated string. Use | for separator groups. Check the Class Reference for all available command names.
<richtextbox
toolbar="{bold,italic,underline}|{fontname,fontsize}|{forecolor,backcolor}|{insertlink,insertimage}|{undo,redo}"
height="300px" />