mastodon.gamedev.place is one of the many independent Mastodon servers you can use to participate in the fediverse.
Mastodon server focused on game development and related topics.

Server stats:

5.6K
active users

Ok, I just found out you can use Unity's Handles class to draw stuff in the inspector. Docu says:

"Handles - Custom 3D GUI controls and drawing in the Scene view"

Unity also uses it to draw NavAgents Inspector.

Code in second message.