Background Color
That property allows specifying the background color for a section (block) or an item (field).
Note: when you specify a color for a block or an item, the Background Style is automatically set to <Opaque> instead of <Transparent>.
The Background Color property uses as parameter a number corresponding to a specific color.
Use that button to
display the available colors or generate a customized color.
Alternative:
Use that button on the Report Format Toolbar to apply directly a color
to the block or field background.