Font types

there are apps in the market that will do it, but i believe you need to be rooted to use most if not all of them.

 

If you use Go Launcher you can use Go Launcher Fonts without root.

 

you can actually soft brick your phone by putting an incompatible font on it. ive done it before.
if the phone doesnt do it by default, you need root, because the fonts are stored in a system folder.
thats probably why the apps you tried didnt work.

 

im assuming this would only change areas controlled by the launcher? not the entire system.

 

That's a good observation and certainly a possibility. Thanks for sharing.