Please note that a clean build is required, per the ChangeLog note in WebCore/ChangeLog: "2005-07-18 David Hyatt <hyatt@apple.com> Add support for -khtml-appearance in preparation for the addition of RenderTheme to the tree for form controls. Make clean is required after this check-in, since there is some sort of bizarre bug with XCode dependencies on the property generation script." (thanks to Mitz on #webkit for pointing this out to me) Kevin Broderick / kbroderick@smcvt.edu