What if you could toggle the symbols? So when it is checked it would mean you have the more detailed symbols, and when it is unchecked you would see the classic symbols.
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maybe if players can choose between classic ones and the detailed ones? this allows players who want classic symbols and players who want more detailed symbols to choose what they prefer. Also, a default setting where units are displayed in classic symbols when unchecked and displaying detailed symbols when checked like the ones you said