PS, I'm not sure what you mean by colour...there is a place in "My Home" where you can choose from several styles (or skins). If I recall correctly, you could choose pinks, or blues, or greens...not a whole lot of choice, but a few colours in there. I use green (very soothing for me personally). Have you had a look in there to see if there are colours that would brighten up your BWS experience?
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When you don't like a thing, change it.
If you can't change it, change the way you think about it.

(Maya Angelou)