I’ve noticed such subtle bits of symbolism throughout the series, such as the camera being placed behind a support during an argument between Walt and Skyler, so they are visually divided. I’ve also wondered if Skyler frequently wearing green, even from the first episodes, was a nod to her role as life giver. And when Walt tells Skyler he’s out of the business I noticed they were both wearing green, and that the plate Skyler held was green, suggesting life returning to the White household.
I haven’t been diligent enough to tell whether color symbolism is used throughout the series, but it does seem like the directors/producers are very aware of symbolism.
