fonts/static/ holds Instrument Sans (with italics) and JetBrains Mono at
400, 500, 600 and 700 as plain TrueType files. The stylesheet keeps using
the variable woff2 files; native toolkits and font configurations often
register a variable font as a single Regular style, and pick weights by
name rather than by axis.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>