Download Font Changer (root, donate) v4.0.4 APK. Requires *FULL ROOT* (aka NAND unlocked or S-OFF) and *BUSYBOX*. If you don't know what either means then there is a chance this won't work for you. A custom recovery is also highly recommended, but not a requirement as changing fonts can cause bootloops in some cases. You have been warned, so use with care and at your own risk.  Not all custom firmwares/devices may work, but most do. Email me if it doesn't. Fonts are not included in the application. Check out the (free) ad-supported version if unsure whether this will work for you.