A root such as width="96pt" height="96" took CSS pixels (0.75 pt) along x and points along y,
so a square came in 24 x 32 pt and the artboard 96 x 96 instead of 96 x 72; with a viewBox the
art was stretched too.
When either root side is absolute, both axes now take CSS pixels at 96 per inch (usvg already
parses at that resolution): the unitless or px side is the same CSS length it would be in a
browser. The root scale is one number.
The test opens width="96pt" with height 96, 96px and 72pt, and width 128 with height 72pt: a
96 x 72 artboard and a 24 x 24 square; with viewBox 0 0 32 32 a 72 x 72 square at x 12 (meet),
and with preserveAspectRatio="none" the whole artboard.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
# Conflicts:
# ROADMAP.md
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