Since the release of the new icon set in 2.4, in at least one place, some of the icons are too large to be displayed properly. The one (and only, so far) page where this is a problem is "Edit Quiz/Order and Paging" – namely the arrow and delete (X) icons. The old, smaller (pre- 2.4) icons displayed fine, but the 2.4 icons appear to be too large for the space allotted to them in the existing stock themes. This issue is evident in the themes I've checked (e.g., stock Formal White theme). I think the stock themes may need to be updated to address this.