[Edi]

You're just going to have to learn to remember. It isn't that difficult a task, just 17 symbols. The only ones where there is danger of confusion if you don't look closer are Man, Mictlan and Pangaea because they all have green flags that look rather similar at a glance.

And we definitely don't need anymore clutter on the map. If it was done with a filter, maybe, but the problem is there already are nine filters for the more important stuff (okay, so I don't think the income filter is all that necessary, I always turn it off because it's so bloody annoying, but that's just imo).

Edi