Samsung 8000 Series User Manual page 237

Background Color: You can change the
background color of the captions. Options
include Default, White, Black, Red, Green,
Blue, Yellow, Magenta and Cyan. The default
is Black.
Foreground 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 each Size,
Font Style, Foreground Color, Background