Panasonic TC-55CX650U Ehelp page 165

Foreground opacity
Selects the opacity of text.
Background
Selects the color of text box.
Background opacity
Selects the opacity of text box.
Outline
Selects the outline color of text (Identifies the settings options on the
screen).
Reset to defaults
Resets all Closed Caption settings to factory default settings.
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