In the current application environment,host(Neither stoped nor in maintenance mode ) in the map just can be displayed vie two types of icons:normal or problem ?

I think it's useful in some production environments that host be displayed via diffrent icons according to the highest trigger severity?
when the host's highest trigger severity is disaster ?its icon is icon-disaster
when the host's highest trigger severity is high ?its icon is icon-high
when the host's highest trigger severity is average ?its icon is icon-average
......

Sorry for my bad English.