I don't remember all the symbolism of the Swiss flag's design, but I remember two ideas represented by the symmetry are equality and neutrality.
Makes sense when you see it.
I learned something today.
Wow
Didn’t know that
Gioia got it, congrats. Switzerland is one of the few flags that is square.
The UK? Most people don't know which way round the union jack is supposed to hang!
If it's not Japan, then I'm flummoxed!
England?
Is Switzerland's flag still square?
Neutrality!
OK,I did not get it,having found the Libyan flag.