How to check if a token is whitelisted?

Hi, sorry if the question is stupid, but i am kinda new. how do i check if a token is whitelisted?

I joined the Trustswap/ETH pool. The pool doesn’t give me the “no whitelsited” warning. I guess it means that trustswap is whitelisted? Anyway, is there a complete list i can check, to see all the whitelisted tokens?