Created attachment 71000 [details] testcase There are some issues on how the combobox's popup list is renderered due to the applied color palette. Please load the testcase. The second <SELECT> element specifies a transparent background, the list popup will also be rendered with transparent bg and this cause the option element on the list to be unreadable because they overlap with the underlying page content. This similar issue has already been resolved in case of combo styled with image brackground (see #170398). The fourth combo is styled with yellow background. The background of its list popup is yellow but also the scrollbars will be painted with yellow color, unlike other browsers engine that renders the scrollbars with default system colors.
Git commit 9169e3286911f102dda285408ce003337967744b by Andrea Iacovitti. Committed on 10/05/2012 at 21:28. Pushed by aiacovitti into branch 'KDE/4.8'. Combobox's listview popup colors: - Use default system colors when combobox has transparent/image background - Always use default system color for listview scrollbar FIXED-IN: 4.8.4 M +1 -3 khtml/css/html4.css M +16 -13 khtml/rendering/render_replaced.cpp http://commits.kde.org/kdelibs/9169e3286911f102dda285408ce003337967744b