OptionalalignHeader text rendered in the top row.
Property of the row used to look up this column's raw value.
OptionalrenderCustom cell renderer. Receives the looked-up value and the full row.
Return a plain string — Table will pad / truncate it to width.
Returning markup is out of scope for v1; pad-then-truncate semantics
only work on plain strings.
OptionalwidthColumn width in cells. When omitted, the column flexes to fill remaining space (multiple flex columns split it equally).
Default 'left'.