Ooh, Dark Pattern, that sounds awesome. Also, Dark = relative absence of light, or almost absence of light, but not quite. Also, in western philosophy and languages, Dark is equated to evil, as opposed to Light and non-evilness, that can be traced as far as the allegory of the cave, where shadows are illusions and reality is "above", "the light" that creates "the shadows".

If the word "Dark" invokes a racist meaning for you, you might want to consider retraining yourself in language and philosophy, you're on the fast track to becoming racist - racist being someone who connects meanings of human discrimination based on physical traits to any word (that could relate to color, light, whatever) regardless of the context and original meaning of said words. You're discriminating those poor harmless words!