As a user, I'd like to have the ability to customize the system fonts that are used when I use Roth_UI. This way, the experience will be consistent for me, no matter which fonts I decide to use. When complete, I should be able to visit the addon section of the interface menu and select a font to use for larger, more impactful text and another for smaller, harder to read text. The font selection I have available to me should be driven by LibSharedMedia, so that I can easily add my own fonts without having to modify Roth_UI itself.

Okay, pull request opened.