No s'hauria d'agafar les fonts de Google
He estat llegint una mica de què va el tema: https://chrislema.com/google-fonts-tos/ https://developers.google.com/terms/
Potser valdria la pena copiar les fonts o fer-ne servir una de genèrica.
Extracte: d. Promotional and Marketing Use In the course of promoting, marketing, or demonstrating the APIs you are using and the associated Google products, Google may produce and distribute incidental depictions, including screenshots, video, or other content from your API Client, and may use your company or product name. You grant us all necessary rights for the above purposes.