Hi!
At the risk of getting many not-pleased comments in reply, I have tried the current versions of KiCAD and I have to confess the style of it's "system font" on the schematics doesn't really appeal to me!
I was born in 1961 and learnt electrical/electronic engineering at a time when nearly all circuit-diagrams were annotated with stencilled letters, and in fact I have a British-made UNO stencil that produces 1960s style upright "Practical Wireless" lettering - is there anyone who's more expert on the KiCAD source code than I am can give me an insight into the "system font" is coded and what's involved in modifying it please, then recompiling it to make my own "Practical Wireless" style KiCAD?
Chris Williams