Question about citation formatting with LibreOffice plugin

I'm very new to Zotero. I've been using the LibreOffice Writer plugin for my citations, but a recent LibreOffice update changed some setting that I can't figure out how to change back. Previously, the citations were highlighted in grey, but now they are not. It's annoying because several times I've started typing within the citation and typed a whole paragraph inside it without realizing. Can anyone help me change this back? (Or is it in the LibreOffice settings?).

Thanks!