Just install it to your computer. Once you reopen LiveSplit, you should be able to select it within specific layout settings.
Hey, question on this one... I've got many fonts installed on my computer that I have used for stream layouts, in GIMP, etc, but none of them show up in LiveSplit... anyone know what I could be missing?
EDIT: I disabled the 'Windows Font Cache' service in services.msc on Windows 10 and it fixed the issue! My fonts stay after a reboot now <3
@AaronTruitt I had the same problem and what helped me was uninstalling and reinstalling the font I wanted to use.
Thanks, Laika - I edited my original post this morning - I figured out if you disable the 'Windows Font Cache' service within Windows 10, all of my custom fonts stay installed properly after a reboot!