···7788## [Unreleased]
991010+## [0.8.0] — 2026-03-19
1111+1212+### Fixed
1313+- **Grid lines over colored cells**: moved cell background from `.cell-display` child to `<td>` parent so `box-shadow: inset` grid lines always render on top of colored backgrounds — consistent across Chromium and WebKit (#70, #71)
1414+- **Silent error swallowing**: title save, document deletion, and trash operations now show error toasts instead of silently failing (#152)
1515+1616+### Added
1717+- **Standardized toolbar**: reorganized to match Google Sheets ordering — Undo/Redo/Print/Format Painter → Number Format → Font → Bold/Italic/Strike/Colors → Borders/Merge → Alignment/Wrap → Filter/Chart. Underline, Sort, and less-used tools moved to overflow menu (#21)
1818+- **XLSX export**: wired up the Export XLSX button to the existing `exportToXlsx` function (#109)
1919+- **ARIA grid accessibility**: cells have `role="gridcell"` with `aria-colindex`/`aria-rowindex`, headers have `role="columnheader"`/`role="rowheader"`, selection toggles `aria-selected`, status bar uses `aria-live="polite"` for screen reader announcements (#150)
2020+2121+### Changed
2222+- **Selection performance**: track previously styled elements instead of 8x `querySelectorAll` on every selection change — O(previous selection size) clear instead of O(all rendered cells) (#147)
2323+1024## [0.7.2] — 2026-03-19
11251226### Fixed