Zextras theme is a modern-looking theme for Zimbra compatible with Zimbra 8.6 and above. This theme: is extremely elegant, no other available themes get even close to it, does not change any classic UI element or functionality, so you don’t need to spend any time getting accustomed to it, provides more proportional buttons, better visibility, … Continue reading How to Upgrade Zextras Theme for Zimbra | Zimbra