Characters of different sizes on one line all sat on the Roman baseline.
Japanese layout usually lines them up by their ideographic em boxes
instead (a 16 pt 第一回 next to 32 pt 雅楽 centred on it, not sitting on
its baseline). The Character panel menu now has Character Alignment:
- `CharStyle.char_align`: Roman Baseline (as before, the default), or the
em box Top/Right, Center or Bottom/Left: a character smaller than the
line's largest moves so that its em box top, centre or bottom lines up
with the largest's (the em box from the font's vertical metrics, else
0.12 em below the baseline to 0.88 em above it). Vertical type the
same across the column (top → right). Written only when not Roman
Baseline.
- `text.setFormat {charAlign: "romanBaseline"|"emBoxTop"|"emBoxCenter"|
"emBoxBottom"}`; the menu shows the selection's setting; catalog rows
in ja and zh-hant.
- Not yet: aligning on the ICF (average character face) top and bottom.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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