Well looking below my current "Quick-Reply-Window" there are 4 Buttons, each having a different icon (Previous, Index, Next, Threaded). They DO differ in the icon. IMO, this icon should not be an img-tag as it is now but be a background-image in the css. As a matter of fact img-tags should only be used where the image is part of the content and not of the presentation (smilies, images from gallery, ...)
I agree there are a lot of redundant classes in the current templates which can be replaced by subadressing (is it called that) in the CSS. (Or better, there is a lot of html code which could be replaced by slick styling, I believe) But there are a lot of places where more classes could clean up the code and make the pages smaller, more efficent and faster loading. Replacing all the img tags by a class in the surrounding a is the most obvious way.
