Macbeth--dark doings

I think it's time I considered Macbeth in this blog. In many ways, one of my favourite plays (certainly the most memorable in many ways--if not the most edifying). One thing that always strikes me in the play is the ways in which images of darkness and light are used in the play. They are there from the first moments, when the thunder and lightning that opens the play introduces the witches, through the frequent invocations of darkness made by both Macbeth and Lady Macbeth, to the bloody conclusion of the play, where Macbeth exclaims ‘I gin to be aweary of the sun’. Perhaps more than in any other play by Shakespeare, this dichotomy of light and dark dominates the imagery used throughout by all the major characters.

This sharp differentiation of light and dark, a focus on shadows, as well as a symbolic interpretation of what darkness might represent are all features of later gothic writing. When thinking about Macbeth as a gothic play, it is therefore worth examining how the literal distinction between darkness and light, or night and day, becomes transmuted, throughout the play, into a powerful symbolism that reflects good and evil.

There's a theory that all the scenes take place in darkness, or near-darkness (dawn and dusk). Very gothic. Do you think there's enough evidence to back this idea up?