Adding Fonts to Your Phone Using themeGalaxy
Add your .ttf fonts to the "custom" folder on your phone
Now open themeGalaxy
From the menu select "Build Custom Font from .ttf"
Click Load from fonts/custom folder. Select the font. You can only do one at a time. The font name will show up in "Font name". If there is a space in the name, delete the space. Now click build, then install. Do this for each font you want to add. When done, reboot your phone. They will not show up if you don't reboot (power off/on or restart)
After your phone has been rebooted, go to your phone settings where the fonts are and you should see the ones you installed