Can I change the system font style and size on my phone?

HTC Themes lets you choose, download, and apply a font style on your phone.

1. Press and hold on the Home screen, and then tap Change theme or Theme.
2. Log in with your preferred account to browse from the available fonts in the Themes store.
3. Tap to open the slideout menu. Under Store, tap Fonts.
4. Scroll through the list of available fonts, tap a font style to preview, and then tap Download.
5. Tap Apply to change your system font style.
6. Open any app or go to the Settings to see the changes applied.
7. To change the font size, go to Settings, and then tap Personalize > Font size.