The predominant colors in the film are red and white, the colors of the two opposing queens. Despite patches of color in Underland (aptly named), much of the landscape is blasted and black, a picture of nuclear winter. Although the Red Queen is the wicked one, it's almost a relief when Alice makes it to her palace, which is colorful indoors and out, an effect heightened by the lavish use of red in the costumes and decor. Red is a color of appetite, and I could almost taste the Queen's missing squimberry tarts, which I imagine as a particularly luscious kind of raspberry pastry.
Alice spends most of the film wearing blue, which goes with her dreamy youthfulness. In the Red Queen's palace, though, she gets clothes done up from red curtains that are much more fashion-forward and fun than the pale blue ones. When she escapes the palace and ends up in the castle of the White Queen, her clothes become pale and silvery again. Like the White Queen herself and her surroundings, Alice looks ghostly and ethereal.
All of this makes me think of alchemy, which Jung explored as a symbol for individuation. In this system, the substance to be refined begins in blackness. You might say this is the wasteland, the period of darkness and unconsciousness, the wintertime of the soul. It's hard to move from the blackness to the state of albedo, the whiteness. This only occurs through repeated trial and error as the individual moves ahead and falls back again and again. In albedo, the person gradually attains objectivity and inner peace as he or she integrates more and more of the material of the unconscious.
All of this is on the way to the rubedo, the redness. The rubedo is the heart awakening, the point at which individuation really begins. The heat for the reddening is supplied by emotion, so that the person feels the change in a concrete way as a newly kindled passion for life.
Alice starts out in the desolation of the blackening, but the rest of the process is out of whack. She proceeds first to the Red Queen and then to the White. As beautiful as the White Queen is, there is something chilly about her and her surroundings. It's hard to imagine living for long in her palace; the most appealing scene is the one in which the Queen and her household walk outside between two rows of what appear to be blooming cherry trees; the pink blossoms are a welcome touch of color.
The White Queen, who could use some reddening, is too ineffectual to defeat the Jabberwocky herself, and it falls to Alice to be her champion. She slays the monster, which results in the banishing of the Red Queen and the restoration of the White. While this goes against an alchemical reading, it is true that Alice has to drink the blood of the Red Queen's champion in order to return to her ordinary life (the blood itself is purple and looks more like grape juice, but close enough). Alice returns to the upper world stronger and ready to chart her own path.
This was a Disney film, so I guess a dampening down of the fire was inevitable. This is a sanitized family movie, so you're only going to see so much libido, though Tim Burton did include subversive touches: the White Queen is a little scary in her own way, even passive-aggressive, and the Red Queen has a commendable appetite for tarts. She is, after all, the Queen of Hearts (though maybe too passionate about the wrong things), and she does give Alice a styling set of new clothes.
Alice begins and ends the movie wearing blue, a color signifying spirit rather than passion. I would have liked to see her sailing into her new life wearing that red party dress snipped out of curtains, but I realize that's asking a bit much of Disney.
On a final note, I'd like to say that although I'm not the one who ate the squimberry tarts, I would have been if I had found them.