Note: Preload and downloadable font styles and launcher fonts may vary in different models, areas or firmware versions.
Changing font styles (apply to whole system): Available in Android 5.0 and above
Tap [Settings] -> [Display] -> [Font style] and select your preferred font style.
Changing launcher fonts (only apply to "home screen" and "All apps menu") : Available in Android 4.4 and above (Please update "ASUS Launcher" to latest version)
1. Tap and hold an empty area on home screen or swipe up the screen, and then tap [More] -> [Launcher fonts].