The Rich Text tab of the Cell Type dialog in the Spread Designer contains the settings for customizing the rich text cell type that can be applied to cells.
For information on the individual properties, refer to the RichTextCellType class in the Assembly Reference.
For information on the Background tab for customizing the background of this cell type, refer to Background Tab.
For more information on the rich text cell type, refer to Setting a Rich Text Cell in the Developer’s Guide.