You can choose a color for each event using a list in the Inspector. The Color section of Settings allows you to add and edit the colors that are available in this list.
Tap on Add new color to add a new color, or tap on an existing one to edit or delete.
Colors have two properties:
Name: The name given to the color. Depending on your needs, this may be a color name (e.g. Red, Yellow) or the meaning you want to give to a particular colour (e.g. Critical, Trivial, Fred’s POV).
Color: The color to be used.
Aeon Timeline provides 20 template colors to choose from which are selected to stand out across all of the skins available in the application