1º_ As an adjective it is used in signage and signage as a translation for the most widespread backlight, where a poster of translucent material has a lighting from behind. 2º_ Participle of a verb to backlight .
BACKLIT illuminated from the back
{Retro} , ( outdated , aged ) {illuminated , good luck and intelligence , ( very opaque illuminated place ) . Some synonyms, words or similar expressions can be retro lights, retro age, retro dim, retro clear, retro-shiny