A Sweater

I've made quite a bit of progress on my Fireworks pullover!  I've knit both the front and back down to the underarm now, which means that I've joined them together and can just knit around and around in circles until they're long enough.  The first time I knit this pattern I skipped the pocket, but this time I decided to do it, so that's what the purple stitch holder is doing - holding the stitches where the pocket lining will be knit.  I haven't decided if I'll knit the pocket lining in the Fireworks yarn or if I'll use a contrasting color.  I think the pocket might get lost if it's all the black Fireworks yarn, but I don't want it to stick out like a sore thumb either.

Any ideas or opinions?  I'm not opposed to the idea of bringing the pocket lining color (if it is indeed a contrasting color) back for tiny stripes at the neck, hems, and cuffs, in an attempt to tie it all together.  Or maybe I should just use the Fireworks for everything.