This update uses the 1.18.1 spigot .jar and Java 17 for building. Additionally, a new /formatbook command can be used on a written (signed) book to translate color/formatting codes such as &a,&e,
#22ccee and &r to the actual color/formatting.
A formatted, unsigned book may look weird, such as some colors being wrong, but formatting it again after signing it should fix it.