Sorry for my language, I speak Spanish, I mean the game's lettering style
Viewing post in Baldi's Basics Plus 0.13 Assets comments
All the translation key (the text itself) is in the normal compiled game. its in the game directory then "/BALDI_Data/StreamingAssets/Subtitles_En.json". You can change the text and it will work without any mods.
And the font is in the assets under the name "Comic_[something] Atlas.png
I hope this is the right thing you wanted. :)