Zabbix Dashboard must be capable of displaying unacknowledged and acknowledged problem separately. It affects System Status and Host Status widgets.
The feature should be optional, disabled by default and configurable under Dashboard settings. If acknowledges are disabled on system level, it shouldn't be activated.
- total number and number of unacknowledged events should be displayed
- unacknowledged events must be clearly identified (some well-visible red icon?)
- the following columns should be displayed: "Without problems", "With all problems acknowledged" (yellow background if >0), "With unacknowledged problems" (red background if >0) and "Total".