Settings toggle — active row/column band tint
A Settings-panel checkbox lets the user opt IN to a whole-row/whole-column tint on the active cell's row and column (beyond the always-on header emphasis); the choice previews live and survives a reload. Off by default, matching Google Sheets.
What it does
Google Sheets emphasizes only the active cell's row/column header labels (e.g. selecting C4 highlights the "C" and "4" header cells). Studio's active-band render layer can additionally wash the whole active row and column across the grid body — a Studio-only enhancement, off by default so the out-of-the-box experience still matches Sheets. This issue surfaces that already-built layer as a Settings → Selection → "Highlight active row & column" checkbox: toggling it previews live (no reload) and persists across a reload, exactly like every other Settings field.
Try it
Open File → Settings…, scroll to Selection, and toggle "Highlight active row & column" — the active cell's row and column band tint shows/hides live on the grid behind the panel.
Verified behavior
Matches Google Sheets: Google Sheets' default active-cell emphasis is HEADERS-ONLY: selecting C4 bolds/tints only the "C" column-letter and "4" row-number header labels — the grid body gets no extra tint beyond the selection outline itself. Sheets has no first-party setting to additionally wash the whole active row/column band across the body (this is a Studio-only opt-in enhancement, not a Sheets-parity requirement), so the Sheets-faithful default this toggle must preserve is OFF — the render layer (already built and unit-tested) has carried this default since and this issue only adds a way to flip it at runtime.
The toggle is reachable from Settings and starts unchecked (OFF, the Sheets-faithful default)
Given
When I click menu item file.settings
Then
[data-testid="settings-panel"]is visible[data-testid="settings-field-showActiveBands"]is visible containing "Highlight active row & column"
View a workbook
A workbook's cell values render on the canvas grid — numbers and dates right-aligned, text left-aligned, formula errors shown distinctly — with only the visible cells drawn so scrolling stays smooth on a large sheet.
Column and row resize (drag, auto-fit, and multi-select)
Dragging a column/row header border resizes it; double-clicking a border auto-fits it to content; resizing/auto-fitting one of several selected columns/rows (or a select-all) resizes them all together. Sizes persist across save/reload.