At least these admonition icons are throwing deprecation warning:
kbroch@~/rvi/docs-dev-guide.kbfork on ξ refactor-to-latest-spec-template:main [?β‘] via π v3.11.2 (venv)
β― asciidoctor-pdf --verbose --trace -a compress -a mathematical-format=svg -a revnumber=v0.0.0 -a revremark=Draft -a revdate=2024-01-23 -a pdf-fontsdir=docs-resources/fonts -a pdf-theme=docs-resources/themes/riscv-pdf.yml -D build --failure-level=ERROR --require=asciidoctor-bibtex --require=asciidoctor-diagram --require=asciidoctor-mathematical src/docs-dev-guide.adoc &> build.log
kbroch@~/rvi/docs-dev-guide.kbfork on ξ refactor-to-latest-spec-template:main [?β‘] via π v3.11.2 (venv)
β― cat build.log | rg -a INFO | sort -u
asciidoctor: INFO: important admonition in theme uses icon from deprecated fa icon set; use fas, far, or fab instead
asciidoctor: INFO: note admonition in theme uses icon from deprecated fa icon set; use fas, far, or fab instead
asciidoctor: INFO: possible invalid reference: Superscripts and other mathematical notations
asciidoctor: INFO: tip admonition in theme uses icon from deprecated fa icon set; use fas, far, or fab instead
At least these admonition icons are throwing deprecation warning:
Might be time to update the pdf.yaml theme