Calendar Colours
You can change and display the colours in a few ways.
Each Event Space has its own colour, found under Side Menu > Admin > Event Space Management > Manage Spaces - here you change the background colour of the block you see on the calendar and also the font colour.
Each Event Status has it own colour, found under Side Menu > Admin > Event Settings > Event Status, here you also change the background colour of the block you see on the calendar and also the font colour.
It then depends on your "personal" calendar settings. When viewing the calendar, click on the Settings Icon, top right of calendar next to where it says "List" and use the first dropdown box to change how you view the colours on the calendar.
Show by Event Space Colour will use the Event Space Colours
Show by Event Status Colour will use the Event Status Colours
Show Default Mix - will show all "Confirmed" events in the Event Space Colour, if not marked as "Confirmed" it shows them using the Event Status Colour relevant to its current status.
Remember the calendar settings are linked to the user logon, so if you change your settings it does not affect everyone else who uses the system.