It uses theme engines as a passage to install fonts to the systems. It packages font files (TTF/OTF) at runtime within the app itself to provide one of these packages: # Fontio works on devices with sysserv patch in 8.0+ ROMs and not Andromeda plugin enabled devices. Eg: AOSiP 8.1 1. Substratum Theme 2. CMTE Theme 3. Flashable Zip 4. Font Injection (requires root) 1. Substratum Theme ----------------------------------- ● To install a substratum theme you need to have a ROM with OMS commits. ● If you are using Substratum Legacy packaging font as a substratum theme will show a blank screen. ● Legacy users can opt-in for 3rd option (i.e.: flashable zip) ● These substratum themes will also not work on Developer Preview versions, AGAIN (3rd option) if you have a TWRP/CWM recovery. 2. CMTE Theme -------------------------- ● These themes work on ROMs which have CyanogenMod Theme Engine only. ● Thus in ROMs 6.0 and below upto Jelly Bean and not 7.0+ ROMs. 3. Flashable Zip -------------------------- ● This is sort of like an universal solution for changing your font. ● As a wise man said “If you got a recovery you can flash a zip”. And he was not talking about stock recoveries. 4. Injection (root) ---------------------------- ● Also an universal solution but requires you to enable it from Settings ------------------------- | Usage | ------------------------- ● Select a ttf/otf file from storage. OR Select font from "Font Store". ● Package the font into substratum readable pack. ● Install the pack. ● Enjoy !! ------------------------------------ | Fontio Premium | ------------------------------------ ● Have full control over packaging fonts ● Select different fonts for different font type ● Share and request fonts between all Fontio users ● Mix and match multiple fonts in single package ● Save your font configuration locally</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br>