Variable HeaderTextStyle`Const`

HeaderTextStyle: { A1: "a1"; One: "one"; Zero: "zero" } = ...

Suggested style for rendering header text on either axis.

The meaning is axis-aware:

On column headers:
- A1 → Alphabetic (A, B, C, …, Z, AA, AB, …)
- One → Numeric, 1-based (1, 2, 3, …)
- Zero → Numeric, 0-based (0, 1, 2, …)
On row headers:
- A1 → Numeric, 1-based (1, 2, 3, …) — Excel-style rows
- One → Numeric, 1-based (1, 2, 3, …)
- Zero → Numeric, 0-based (0, 1, 2, …)

This is a hint for the header renderer and may be ignored (e.g., by a custom HeaderRenderer).
Use ISheetView.setRowHeaderStyle and ISheetView.setColumnHeaderStyle to apply per-axis preferences.

// Excel-like: columns as A/B/C…, rows as 1/2/3…
sheetView.setColumnHeaderStyle(HeaderTextStyle.A1);
sheetView.setRowHeaderStyle(HeaderTextStyle.A1);

// Data-science style: zero-based rows
sheetView.setRowHeaderStyle(HeaderTextStyle.Zero);

Variable HeaderTextStyleConst