Note these sections of the trademark rules and brand guidelines:
"You may not
use The Pi-hole Marks when redistributing our software (i.e. not modifying the source code to remove The Pi-hole Marks prior to distribution), which may confuse or mislead people into thinking that your business, products or services originate from or are associated with Pi-hole and/or Pi-hole LLC;
use The Pi-hole Marks in a way that creates a false impression that your product or business is endorsed, sponsored by, or associated with Pi-holeand/or Pi-hole LLC ;"
Your best approach is to communicate with Jacob (Pi-Hole principal) directly.
https://pi-hole.net/contact/