Liightning Calendar updated with Thunderbird not color coding as before

I updated thunderbird which also changed the lightening calendar. Now the color coding of events is always green with only a thin strip on the right of the type of event I chose – such as red for Followup, yellow for Busy. How can I make the entire color red, green, yellow etc instead of just the thin strip of color.

Wrong forum mate, this is for the Common Voice project.
This is the forum for Thunderbird:

Moved to Thunderbird