If I don't use something (often), i don't like it drawing my attention.
That's why I am not happy with the default items "Appointments", "Tasks",... displayed at all times, let alone with nice colorful icons.
To get around that, I move all my own items above these items in order for them to slowly disappear from sight. I also made a blank, transparent icon, imported it (File/Import/Files/Store files contents in Ultra Recall=ON/The Imported Items...=ON)
and assigned it via Item Attributes pane as Icon to these items.
Crazy or useful for you?
K