I think that this is can't be considered a "trivial New Feature" ... From a business point of view this kind of graph can be the right way to use zabbix from all levels of a company.
For example: for an IT Service Manager or an IT Manager if the trigger is fired up or an item have a particular trend, these are too many informations ... He want only a "dot" for "all goods" (green) , "scream with IT operators" (yellow) or "pray for your soul" (red), no other information is needed.
Like for this, a Detailed capacity planning have too many data for an IT Manager, he want only a speedometer with aggregated data that help his process decision (in a BI view)
all that help to seperate technical view from business view, and zabbix lack of many of these "beautify" feature ...