How do you hide the Alt/Ctrl prefix on the hotbar shortcut keys?

[Hinton]

My UI's Hot Bar has this feature where you can hide just the Alt / Ctrl / #s, the Page Changers, etc... Use the Frame or None feature in the Window Settings. You can download my UI and just grab out the 'hotbar' XML file and you'll be fine. It fully supports the ability to change icon sizes and also has no dead space.

UI Compilations, Hinton's UI Compilation.