My replacement is a 3G.

With the light at 24 you can really see the faint pink blotches scattered about. But 24 is too high and bright to read. At 14 the green shadow is dominant over most of the screen, especially the upper 2/3. The shadow is obscuring the text quite a bit. Below 14 and it quickly gets too dark and shadowy to read.

I had a Fire for a few months but I didn't like the Kindle app on it. It was pretty featureless. Maybe they have improved it in the past 6 months. Also a bit heavy to hold. Plus I really don't like Android. the apps mostly sucked. So I sold it and got an iPod 3. That of course is too big and heavy to hold, but I use it for running apps I need and it stays in a tilt up case on my desk. Reading is great, but again the Kindle app is only marginally better than the one on the Fire.

My Touch has a golden tan background. Not even a little bit grey. But it has really good contrast on the text. It is okay in brightly lit rooms and outside in daylight, but even with the MB clip on it still has a dark background, but no shadows are colored blotches. My former Kindles had more of a grey background and that was much more pleasing.