the text seems to not be weighted well to the background, and while it is black, it appears more gray as it is also diffused by the light gray background. The color behind your text is not in fact white, it is just off. If you look outside your post text box, you will see a real white background. Not that white is needed, it could also be fixed by using an alternate font that has a little more weight to it so as to not diffuse quite so much.
And though my newb opinion may not matter much, I agree that the contrast is not as good with the new layout.
And though my newb opinion may not matter much, I agree that the contrast is not as good with the new layout.