Merge PR #532 from NikitkaRa: PPTX: read Office 2016 charts (waterfall, funnel, treemap…) and keep them

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Brandon Thomas
2026-10-14 13:25:05 -04:00
9 changed files with 321 additions and 5 deletions
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@@ -208,6 +208,9 @@ Detail in [file-format-parity.md](file-format-parity.md).
whisker) aren't read. Trendlines round-trip (`corpus_charts.rs`) and are not drawn. A combo
chart's secondary value axis is read (`y2_*`, `Series.secondary_axis`) and is not written back
when the chart is rebuilt.
chart types" (partial); `chartex` parts (waterfall, funnel, treemap, sunburst, histogram, Pareto,
box & whisker) are read for their data and written back unchanged, but they're drawn with the
bar renderer and an edited one is saved as a plain column chart; region maps aren't read.
- **Impact:** most business decks have charts; editing their data is routine.
- **Estimate:** 12–20 h. Data and elements are **beta blockers** (6–10 h).