I would argue the style is kind of orthogonal to the style of Technicolour film. The light sources are all natural environmental lights with a deep dynamic rang

I would argue the style is kind of orthogonal to the style of Technicolour film. The light sources are all natural environmental lights with a deep dynamic range in dark nighttime environments. Technicolour films (the more modern three-strip ones, because these are even farther removed from the original two-strip films, where you would only see shades of green and red) in the heyday of those films were marked by very bright open stage environments blasted by gigantic spot lights illuminating everything in front of the camera. The films were so slow (we're talking like 10 ISO during the 50s) that you needed to blast everything with light or it just would not show up.