Military Unit Icons

May we please have the option to have the old icons be used instead of the new ones. I found the older ones much easier to see and distinguish from each other.

Bah, you just need a newer monitor Scarlet.

I have a very nice monitor!

New glasses!

You can choose the icons you want to use.

How do I do so for military units? I couldn't find any page that let me. That's why I posted this.