Think before you speak. Read before you think. ― Fran Lebowitz
Please read the entire description. TypeFace needs specific requirements for it to work on your device.

With TypeFace all Google Web Fonts are just a click away for use with Cyanogen Theme Engine or Substratum! Generate font themes on the fly by downloading fonts available on Google Fonts (http://fonts.google.com). For the power user TypeFace also provides the option of creating font themes by importing fonts from archives (ZIP/APK) or font files (TTF/OTF).

TypeFace works on:
1. A custom ROM with Cyanogen's Theme Engine (CM14/LineageOS doesn't have a theme engine)
2. A custom ROM with OMS7. Substratum app alone is not enough for font themes to work. Masquerade or Interfacer app needs to be in the ROM too.

Follow the development and updates of TypeFace on Google+:
https://plus.google.com/+DickenChristianMe

Disclaimer: Some of the fonts may be smaller in size as per their design and/or lack support for local languages. TypeFace has no ability to alter/correct these issues.