Right Clicking the Toolbar

When right clicking the toolbar a drop down menu with several options is offered. One option (which is checked) says: "Use Small Size." How does one uncheck this option? It doesn't respond to the usual attempt to uncheck.

A similar option appears at the bottom/left of the View/Customize Toolbar window, which you can uncheck (with no apparent effect) and which reverts to being checked again when this window is accessed again. A bug?

It isn't a bug per-se; Hype only has a small toolbar size available. Apple does not make the way to hide the checkbox available to 3rd party developers (it is private API).

Thank you for the reply.