As mentioned on the kde-looks qtcurve page. "0.49 is the first version to have a Qt4/KDE4 port. This version may be compiled with just Qt4 - in which case the KDE4 control panel config dialog will not be built. See the INSTALL file for more details." qtcurve is also built without the following cmake option passed to it. "-DQTC_QT_ONLY=true Build style as a pure Qt4 style. -DQTC_DISABLE_KDEFILEDIALOG_CALLS=true Do not override Qt's file dialogs with KDE ones. -DQTC_XBAR_SUPPORT=true Include support for Bespin's XBar -DQTC_OLD_NVIDIA_ARROW_FIX=true Due to QtCurve mixing AA-drawing, with non-AA drawing (specifically for arrows) - sometimes the arrows would not draw correctly under NVidia. To work-around this, QtCurve filled the arrows using AA-ed drawing, and used non-AA drawing for the edges. As of 0.69.0 this code is no longer enabled by default - use this config option to re-enable the code." The first one should be turned off by default since turning it on disables the building of the gtk styles config applet and defeats the whole purpose of using qtcurve. this forces those who want the gtk config app to build it manually. Reproducible: Always Steps to Reproduce: 1.emerge -v qtcurve 2.check the kde4 appearance settings in the system configuration program 3.it's not there Actual Results: the theme workes for qt apps only and there was no option to configure gtk apps. Expected Results: The gtk app configuration dialog should of been present in the appearance settings. This happens on both amd64 and x86 platforms.
QTC_QT_ONLY is off by default and will only be set to true if you disable the kde useflag. The GTK dialog you are thinking of is probably kde-misc/kcm_gtk.