Zotero Integration – Import Templates?

Thank you very very much for all the work you’ve put into developing and sharing this! As someone who is totally new to Obsidian, markdown, and nunjucks this was a lifesaver! I only have one question, which is probably quite a silly one, but here goes:
How do you change the icons in the headers? My annotation categories are slightly different from yours and it would be great to swap out a couple of the icons but I can’t for the life of me figure this out. Assuming it’s something quite basic but it’s beyond me. Thanks again!