Using CSS Classes to Set the Color for Events
You can use the following code instead of modifying the Calendar Gantt Color Service business service to set event colors:
siebui-calgantt-event_type
For example, you can add the following class to one of your custom CSS files to set the border color for Not Responded events to yellow:
.siebui-calgantt-NotResponded {
border: 1px solid #FFFF00;
}