I updated the node Sass package to v 1.77.8 and it caused many deprecation warnings, which I traced to this page: https://sass-lang.com/documentation/breaking-changes/mixed-decls/
I am using a customised version of Pico as per: https://picocss.com/docs/sass.
I have rolled it back to v 1.77.6 for now. Are there plans to update Pico?