PivotColRole

type PivotColRole = {
  col: number;
  kind: "subheading" | "subtotal";
  level?: number;
};

The style role of one pivot output column that styles differently from a plain data column, identified by its 0-based column offset from the left of the pivot’s ref --- the column-axis mirror of PivotRowRole:

• subheading: a column-axis group label column.
• subtotal: a column-axis subtotal column.

The region paints the whole column as a vertical strip (header rows and body rows alike), layering over the header/stripe composition property by property: its fill wins, but a bold from the header band is kept (Excel-verified for firstSubtotalColumn on PivotStyleLight16).

Properties

Property	Type	Description
col	number	-
kind	"subheading" | "subtotal"	-
level?	number	1-based column-field nesting level (1 = outermost), selecting the dxf tier --- see PivotRowRole.level. Column subtotals have only a first* dxf, so level affects only column subheadings. Defaults to level 1 when absent.