This comment perfectly displays how horrible of an idea it is to require users to understand and manage relays.
nostr:npub1sg6plzptd64u62a878hep2kev88swjh3tw00gjsfl8f237lmu63q0uf63m – if you’re serious about making a client, I hope end-user relay UI/UX is high on the list.
nostr:npub1cwhy4k8qd2guyqz8t45u4yzyp4k4fhnjn573ukh6e77mde2dgm9s2lujc5 – Red means they’re no longer connecting, so you can probably remove them, and yes, he means delete all of your current relays and replace them with those.