I noticed some possible connections between the Sith and Naboo culture. Red seems to be a prominent color in Naboo culture, Amidala has advisors who wear robes similar to Sith robes, the planet core monsters bring Sithspawn to mind, and Palpatine is from Naboo. Furthermore, the Plagueis novel tells us that red is the color of House Palpatine and that House Palpatine is said to be one of the six gates that keeps chaos at bay. Also, the trivia gallery for a TCW episode says that Dooku’s hideout on Naboo is intended to suggest “a long-secreted Sith presence on Naboo.” I think it would have been awesome if the prequels developed a connection between Naboo and the Sith. Maybe House Palpatine could have a tradition of its patriarch training his heir to use the dark side. Maybe Sith fashion and lightsaber color tendencies could be products of Naboo culture.