Lobby Icons are cosmetics next to players' names in lobbies.
When you join a game lobby, in the player list, your name will have an icon next to it. You can choose which Icon you want displayed in your Customization Options.
There is currently only one icon given to every member that joins.
These are the icons that can be purchased in the in-game store using Points.
These are the icons that cannot be owned unless given a redemption code from a Kickstarter.
These are the icons that can be accessed if you refer people.