A two-bullet-column slide sized both columns with the smaller of the two fit
scales, so a sparse column (e.g. 8 items) was shrunk to a crowded one's size
(e.g. 19 items), leaving the text tiny with empty space below it.
Each column now scales to fill its own height; the column headings keep a
shared size so the layout stays tidy.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- Bullet slides can carry an optional subheading under the title (stored as
`## …` in the slide's subtitle, round-tripped losslessly).
- The two-bullet-column subheadings and the bullets subheading participate in
the auto-fit so the text keeps scaling to fill the slide.
- Slide text auto-sizing now measures with the deck's own font, so the fit
matches what is rendered and the text uses the available space instead of
staying smaller than needed.
- Editor fields, translations (all languages), docs and tests included.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
