Diesel-Font-Tool
The Diesel Font Tool allows you to create fonts for the three main Diesel games: PDTH, PD2 and Raid WW2.
This is the source code of the tool. The tool by itself is fairly simple and mostly uses the Diesel Engine Formats DLL found in here -> https://github.com/Luffyyy/DieselEngineFormats
You can download a public version here: https://modworkshop.net/mod/15221 or in releases tab.