[otrs] Calendar State Color Customization

Hi All, I'd like to customize Calendar Events State to include some new items like 'training', 'demo', 'visit' additionally to the defaults 'meeting', 'public', 'private', ... I could create the new items by editing AgentCalendar.pm But I cannot find how to modify the background colors they are shown on the Calendar grid OTRS v2.3.2 Dario Santos