Samsung PN51E6500EFXZA - Manual (Page 228)

Cyan . The default is Black .
Font Opacity : This adjusts the opacity
of text. Options include Default ,
Transparent , Translucent , Solid and
Flashing .
Background Opacity : This adjusts the
opacity of the caption background.
Options include Default , Transparent ,
Translucent , Solid and Flashing .
Return to Default : This option sets the
Size , Font Style , Font Color , Background