Dolphin uses KF5

ldd /usr/bin/dolphin
        linux-gate.so.1 (0xb77a2000)
        libkdeinit5_dolphin.so => /usr/lib/libkdeinit5_dolphin.so (0xb7676000)
        libc.so.6 => /usr/lib/libc.so.6 (0xb74bd000)
        libdolphinprivate.so.5 => /usr/lib/libdolphinprivate.so.5 (0xb7361000)
        libKF5Parts.so.5 => /usr/lib/libKF5Parts.so.5 (0xb72ef000)
        libKF5KCMUtils.so.5 => /usr/lib/libKF5KCMUtils.so.5 (0xb7290000)
        libKF5Notifications.so.5 => /usr/lib/libKF5Notifications.so.5 (0xb7233000)
        libKF5Crash.so.5 => /usr/lib/libKF5Crash.so.5 (0xb722a000)
        libKF5KIOFileWidgets.so.5 => /usr/lib/libKF5KIOFileWidgets.so.5 (0xb713b000)
        libKF5Bookmarks.so.5 => /usr/lib/libKF5Bookmarks.so.5 (0xb70e4000)
        libKF5NewStuff.so.5 => /usr/lib/libKF5NewStuff.so.5 (0xb6ff7000)
        libKF5KIOWidgets.so.5 => /usr/lib/libKF5KIOWidgets.so.5 (0xb6e88000)
        libKF5JobWidgets.so.5 => /usr/lib/libKF5JobWidgets.so.5 (0xb6e58000)
        libKF5BalooWidgets.so.5 => /usr/lib/libKF5BalooWidgets.so.5 (0xb6e0e000)
        libKF5KIOCore.so.5 => /usr/lib/libKF5KIOCore.so.5 (0xb6c2a000)
        libKF5Baloo.so.5 => /usr/lib/libKF5Baloo.so.5 (0xb6bea000)
        libKF5Solid.so.5 => /usr/lib/libKF5Solid.so.5 (0xb6add000)
        libKF5XmlGui.so.5 => /usr/lib/libKF5XmlGui.so.5 (0xb69a8000)
        libKF5IconThemes.so.5 => /usr/lib/libKF5IconThemes.so.5 (0xb6962000)
        libKF5Completion.so.5 => /usr/lib/libKF5Completion.so.5 (0xb691d000)
        libKF5ConfigWidgets.so.5 => /usr/lib/libKF5ConfigWidgets.so.5 (0xb68bf000)
        libKF5WidgetsAddons.so.5 => /usr/lib/libKF5WidgetsAddons.so.5 (0xb6748000)
        libKF5ConfigGui.so.5 => /usr/lib/libKF5ConfigGui.so.5 (0xb6722000)
        libKF5Service.so.5 => /usr/lib/libKF5Service.so.5 (0xb6649000)
        libKF5DBusAddons.so.5 => /usr/lib/libKF5DBusAddons.so.5 (0xb6633000)
        libKF5I18n.so.5 => /usr/lib/libKF5I18n.so.5 (0xb65d7000)
        libQt5Xml.so.5 => /usr/lib/libQt5Xml.so.5 (0xb6594000)
        libKF5ItemViews.so.5 => /usr/lib/libKF5ItemViews.so.5 (0xb6554000)
        libKF5CoreAddons.so.5 => /usr/lib/libKF5CoreAddons.so.5 (0xb64b6000)
        libKF5ConfigCore.so.5 => /usr/lib/libKF5ConfigCore.so.5 (0xb6444000)
        libphonon4qt5.so.4 => /usr/lib/libphonon4qt5.so.4 (0xb63aa000)
        libQt5Widgets.so.5 => /usr/lib/libQt5Widgets.so.5 (0xb5c9e000)
        libQt5Gui.so.5 => /usr/lib/libQt5Gui.so.5 (0xb5730000)
        libQt5DBus.so.5 => /usr/lib/libQt5DBus.so.5 (0xb5686000)
        libQt5Core.so.5 => /usr/lib/libQt5Core.so.5 (0xb51a4000)
        libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0xb5024000)
        /lib/ld-linux.so.2 (0xb77a4000)
        libdolphinvcs.so.5 => /usr/lib/libdolphinvcs.so.5 (0xb5020000)
        libKF5TextWidgets.so.5 => /usr/lib/libKF5TextWidgets.so.5 (0xb4fd5000)
        libKF5WindowSystem.so.5 => /usr/lib/libKF5WindowSystem.so.5 (0xb4f7d000)
        libKF5Codecs.so.5 => /usr/lib/libKF5Codecs.so.5 (0xb4f3c000)
        libKF5FileMetaData.so.3 => /usr/lib/libKF5FileMetaData.so.3 (0xb4f16000)
        libQt5QuickWidgets.so.5 => /usr/lib/libQt5QuickWidgets.so.5 (0xb4f05000)
        libKF5QuickAddons.so.5 => /usr/lib/libKF5QuickAddons.so.5 (0xb4ef2000)
        libQt5Quick.so.5 => /usr/lib/libQt5Quick.so.5 (0xb4ab5000)
        libQt5Qml.so.5 => /usr/lib/libQt5Qml.so.5 (0xb465e000)
        libKF5Auth.so.5 => /usr/lib/libKF5Auth.so.5 (0xb4640000)
        libX11.so.6 => /usr/lib/libX11.so.6 (0xb44f3000)
        libQt5X11Extras.so.5 => /usr/lib/libQt5X11Extras.so.5 (0xb44ee000)
        libXtst.so.6 => /usr/lib/libXtst.so.6 (0xb44e6000)
        libdbusmenu-qt5.so.2 => /usr/lib/libdbusmenu-qt5.so.2 (0xb44ab000)
        libQt5Network.so.5 => /usr/lib/libQt5Network.so.5 (0xb4308000)
        libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0xb42ea000)
        libKF5Attica.so.5 => /usr/lib/libKF5Attica.so.5 (0xb4221000)
        libKF5Archive.so.5 => /usr/lib/libKF5Archive.so.5 (0xb41e0000)
        libattr.so.1 => /usr/lib/libattr.so.1 (0xb41da000)
        libm.so.6 => /usr/lib/libm.so.6 (0xb4184000)
        libacl.so.1 => /usr/lib/libacl.so.1 (0xb417a000)
        libKF5BalooEngine.so.5 => /usr/lib/libKF5BalooEngine.so.5 (0xb4121000)
        libudev.so.1 => /usr/lib/libudev.so.1 (0xb40ff000)
        libQt5PrintSupport.so.5 => /usr/lib/libQt5PrintSupport.so.5 (0xb4089000)
        libKF5GlobalAccel.so.5 => /usr/lib/libKF5GlobalAccel.so.5 (0xb4061000)
        libQt5Svg.so.5 => /usr/lib/libQt5Svg.so.5 (0xb4006000)
        libKF5GuiAddons.so.5 => /usr/lib/libKF5GuiAddons.so.5 (0xb3fe7000)
        libpthread.so.0 => /usr/lib/libpthread.so.0 (0xb3fca000)
        libpulse.so.0 => /usr/lib/libpulse.so.0 (0xb3f6f000)
        libpulse-mainloop-glib.so.0 => /usr/lib/libpulse-mainloop-glib.so.0 (0xb3f69000)
        libpng16.so.16 => /usr/lib/libpng16.so.16 (0xb3f2b000)
        libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0xb3ec1000)
        libz.so.1 => /usr/lib/libz.so.1 (0xb3ea9000)
        libGL.so.1 => /usr/lib/libGL.so.1 (0xb3e39000)
        libdbus-1.so.3 => /usr/lib/libdbus-1.so.3 (0xb3ddd000)
        libicui18n.so.58 => /usr/lib/libicui18n.so.58 (0xb3b3f000)
        libicuuc.so.58 => /usr/lib/libicuuc.so.58 (0xb398b000)
        libpcre16.so.0 => /usr/lib/libpcre16.so.0 (0xb391e000)
        libdl.so.2 => /usr/lib/libdl.so.2 (0xb3919000)
        libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0xb37ee000)
        librt.so.1 => /usr/lib/librt.so.1 (0xb37e5000)
        libsystemd.so.0 => /usr/lib/libsystemd.so.0 (0xb3753000)
        libKF5SonnetUi.so.5 => /usr/lib/libKF5SonnetUi.so.5 (0xb3726000)
        libKF5SonnetCore.so.5 => /usr/lib/libKF5SonnetCore.so.5 (0xb36ef000)
        libxcb.so.1 => /usr/lib/libxcb.so.1 (0xb36c2000)
        libxcb-keysyms.so.1 => /usr/lib/libxcb-keysyms.so.1 (0xb36be000)
        libKF5Declarative.so.5 => /usr/lib/libKF5Declarative.so.5 (0xb36a9000)
        libKF5Package.so.5 => /usr/lib/libKF5Package.so.5 (0xb3676000)
        libXext.so.6 => /usr/lib/libXext.so.6 (0xb3661000)
        libXi.so.6 => /usr/lib/libXi.so.6 (0xb364e000)
        libproxy.so.1 => /usr/lib/libproxy.so.1 (0xb3627000)
        libssl.so.1.0.0 => /usr/lib/libssl.so.1.0.0 (0xb35b4000)
        libcrypto.so.1.0.0 => /usr/lib/libcrypto.so.1.0.0 (0xb33a0000)
        libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0xb338f000)
        liblzma.so.5 => /usr/lib/liblzma.so.5 (0xb3363000)
        liblmdb.so => /usr/lib/liblmdb.so (0xb334d000)
        libresolv.so.2 => /usr/lib/libresolv.so.2 (0xb3332000)
        libcap.so.2 => /usr/lib/libcap.so.2 (0xb332d000)
        libpulsecommon-9.0.so => /usr/lib/pulseaudio/libpulsecommon-9.0.so (0xb329f000)
        libjson-c.so.2 => /usr/lib/libjson-c.so.2 (0xb3293000)
        libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0xb31d0000)
        libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0xb31a0000)
        libexpat.so.1 => /usr/lib/libexpat.so.1 (0xb3176000)
        libxcb-dri3.so.0 => /usr/lib/libxcb-dri3.so.0 (0xb3172000)
        libxcb-present.so.0 => /usr/lib/libxcb-present.so.0 (0xb316e000)
        libxcb-sync.so.1 => /usr/lib/libxcb-sync.so.1 (0xb3166000)
        libxshmfence.so.1 => /usr/lib/libxshmfence.so.1 (0xb3161000)
        libglapi.so.0 => /usr/lib/libglapi.so.0 (0xb3145000)
        libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0xb3141000)
        libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0xb313a000)
        libX11-xcb.so.1 => /usr/lib/libX11-xcb.so.1 (0xb3137000)
        libxcb-glx.so.0 => /usr/lib/libxcb-glx.so.0 (0xb311a000)
        libxcb-dri2.so.0 => /usr/lib/libxcb-dri2.so.0 (0xb3114000)
        libXxf86vm.so.1 => /usr/lib/libXxf86vm.so.1 (0xb310d000)
        libdrm.so.2 => /usr/lib/libdrm.so.2 (0xb30fb000)
        libicudata.so.58 => /usr/lib/libicudata.so.58 (0xb17fa000)
        libpcre.so.1 => /usr/lib/libpcre.so.1 (0xb1781000)
        liblz4.so.1 => /usr/lib/liblz4.so.1 (0xb176b000)
        libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0xb169d000)
        libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb1686000)
        libXau.so.6 => /usr/lib/libXau.so.6 (0xb1682000)
        libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0xb167b000)
        libsndfile.so.1 => /usr/lib/libsndfile.so.1 (0xb15ef000)
        libasyncns.so.0 => /usr/lib/libasyncns.so.0 (0xb15e8000)
        libFLAC.so.8 => /usr/lib/libFLAC.so.8 (0xb1570000)
        libogg.so.0 => /usr/lib/libogg.so.0 (0xb1568000)
        libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0xb1539000)
        libvorbisenc.so.2 => /usr/lib/libvorbisenc.so.2 (0xb14aa000)