Pro tip: relay operators, set an icon for your relay 
Discussion
so if block or filter "Kind 1" notes then relay allow DM, GC , long notes - correct?
Not sure what you mean LOL
how to block filter rest all IF just want to keep relay for dedicated direct n group messages only ?
My opinion is to have relay implement these kind of access control features instead of the client.
Of course, relay oriented features weakens the decentralization and relies more on trust.
This is an unsolved challenge. I am currently experimenting a new relay implementation for these kind of use cases.
NIP-11 has an optional icon field https://github.com/nostr-protocol/nips/blob/master/11.md#icon please set it so relay explorers and other clients can show it 🙏
Many relays just set /favicon.ico
That's fine, just that favicon.ico is usually low resolution, not beautiful to display as large image