fix: correct OOXML theme color tint/shade resolution#270
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jedrazb merged 3 commits intoeigenpal:mainfrom Apr 17, 2026
Merged
fix: correct OOXML theme color tint/shade resolution#270jedrazb merged 3 commits intoeigenpal:mainfrom
jedrazb merged 3 commits intoeigenpal:mainfrom
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Covers the tint/shade math fix and the theme color threading through toProseDoc to table cell backgroundColor attrs. Uses real-world tint values (33, 99, F2) from documents with themed table styles.
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jedrazb
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Apr 17, 2026
Adds `resolveColorToHex` as the single shared helper for converting any `ColorValue` (rgb or themeColor+tint/shade) to a display-ready hex string, with consistent handling of transparent/auto and missing-theme cases. Applies it at every display-side call site so `themeFill`/`themeColor` with `themeTint`/`themeShade` is honored everywhere, not just on table cells: - `toProseDoc.ts` — replaces the inline resolution added in #270. - `toFlowBlocks.ts` — paragraph shading now resolves themed fills (previously read `.fill.rgb` directly, silently dropping themed paragraph backgrounds). - `clipboard.ts` — HTML copy now honors themed text color and shading when a theme is threaded through `ClipboardOptions`/`useClipboard` options. Tests: +20 new pass (357 → 377 total), covering helper edge cases, paragraph themed-shading end-to-end (Document → PM → flow blocks), and clipboard HTML with themed runs. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
colorResolver.ts: replaced HSL-based approach with the OOXML per-channel linear interpolation specified in ECMA-376 §17.3.2.41. The previous formula produced incorrect intermediate colors (e.g., a 20% tint of dark blue produced medium blue instead of very light blue).toProseDoc.ts: table cells using theme fills (e.g.,themeFill="accent1"with tint/shade modifiers) were rendering with no background because only thergbproperty was checked, ignoring theme color references. Now threads the document theme through the conversion and callsresolveColor().colorResolver.test.ts— coversresolveColorwith real-world tint/shade values (`33`, `99`, `F2`) and edge cases (`FF` = no change, `00` = fully white/black).toProseDoc.test.ts(new) — integration tests verifying that themed cell shading resolves to correct `backgroundColor` attrs on PM nodes.Before / After
Table header rows and section rows using theme colors (common in Word's built-in table styles) now render with correct backgrounds instead of white.
Test plan