Is there an Ereader with a blue or otherwise variable background?

[2Cautious]

I just want an ereader with a blue or otherwise variable background

I think my title question sums it up. I am just trying to find an ereader for android in which I can vary the background. I prefer blue, but any variation in the background would be helpful. Of course the white background is just kind of garish to me. I'm sure you all get the idea. Thanks.