fixedColumnsColor property
Backgound color of the sticky columns fixed via fixedLeftColumns.
Note: unlike data rows which can change their colors depending on material state (e.g. selected, hovered)
this color is static and doesn't repond to state change
Note: to change background color of fixed data rows use PaginatedDataTable2.headingRowColor and
individual row colors of data rows provided via rows
Implementation
final Color? fixedColumnsColor;