Mac users are at a bit of a disadvantage when creating PowerPoint templates because we do not have the option of just clicking "create new theme fonts" as illustrated in the detailed in Microsoft's support forum. But ...
Font Themes in PowerPoint for Mac
Design, Identity Guidelines
Logo design, guidelines for logo use (colours, white space), typography, business card and letterhead design (envelopes were not necessary as most correspondence is sent electronically) for an IP and DNS security ...
Identity Guidelines
Design, Identity Guidelines, Logo design