Unhappy [Q] Verizon G3 in bootloop from font change. Flash?

Thrown into a bootloop after rebooting using ROM Toolbox to change fonts. Rebooted, nothing. I reset cache, nothing. I can boot into recovery (the menu for clear cache, factory reset) but I'm not sure that's the solution. Sorry about this, I'm new to rooting and need some help.
Do I flash to the original .kdz file if I want to retain the settings and memory (music, photos, etc.)? Do I use LG Flash Tool 2014 for this? Or is there another way to get out of this bootloop without loosing internal data?