Originally posted by sardion2000
files.abovetopsecret.com...

I would like to have more than one theme to choose from, cause most people don't like inverted colors in their text reading field.

Yes, I dislike inverted text colors (white text on dark background) in the main posting area and reason why most pro-sites don't use it is because it's less legible and increases eye strain. A computer screen doesn’t reflect light, it creates it and that's why eyes are more susceptible to fatigue with light text on dark backgrounds, which in turn can decrease participation and traffic.

MyATS has darkgrey letters on grey and hard on the eyes also.

On the readability of inverted color schemes

Dr. Lauren Scharff and student Alyson Hill of Stephen F. Austin State University shows the expected results - black text on a white background is the best rated combination for readability.
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…the most readable color combination is black text on white background; overall, there is a stronger preference for any combination containing black. The two least readable combinations were red on green and fuchsia on blue. White on blue and red on yellow were ranked fairly high, while green on yellow and white on fuchsia were ranked fairly low. All others fell somewhere between these extremes.

Also, in every color combination surveyed, the darker text on a lighter background was rated more readable than its inverse (e.g. blue text on white background ranked higher then white text on blue background).

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A second study, at the Adaptive Technology Resource Centre of the University of Toronto, approaches the question in a more rigorous manner.
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In order to assess whether the direction of the brightness difference (i.e. bright text on dim background vs. dim text on bright background) is of any importance in determining readability ratings, brightness difference was calculated as the difference between background and text brightness. In the case where the background was brighter than the text, this difference was found to be positive. For those images in which the text was brighter than the background, this difference was negative. The brightness difference was then plotted against the median rating, and yielded a ‘U-shaped’ plot, shown in Figure 6 (below). This plot suggests that the direction of the brightness difference does not appear to be of importance in determining overall readability ratings.