Type Templates manages the global library of contact, company, and employee types a team's own Contact Types and Company Types start from — switch between the three with the Contact Types, Company Types, and Employee Types tabs (each shows its count as a badge).
Select Create Template to add one, or open the ⋯ menu on an existing row and select Edit: Name, Description, an Icon and Color (shown live in a preview badge), and Auto Install ("Automatically add to new teams"). A System badge marks a built-in template that can't be edited or deleted — its row has no ⋯ menu. Each row's Used By badge shows how many teams currently have it.
Changes here don't affect teams that already have a copy of the type — "Teams with this type will keep their copy, but new teams won't receive it" (per the delete-confirmation copy) — this only shapes what new teams start with.