Assertion: palette's color | /r/HasProperty | visible
Facets:
value: as the overscan area
type: LOCATION
Source sentences:
text: The TurboGrafx-16 used a 9-bit RGB palette, like the Mega Drive/Genesis, consisting of 512 colors with 482 colors on-screen at once (16 background palettes of 16 colors each, with at least 1 common color among all background palettes, and 16 sprite palettes of 15 colors each, plus transparent which was visible as the overscan area).