I found a way on Google so I can do the above till step 3
Go to Events > Event Type 1 from wp-admin.
STEP 2: You should see color circle where you can select color for a new event type tag.
STEP 3: Click on this and change the color and save changes.
I can not do step 4
STEP 4: Assign the event type term to the event.
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and define : I can not do step 4
STEP 4: Assign the event type term to the event.
event types should be on the right hand side of the edit event page