Hi Marko and Thomas,

I have been pursuing a different line of enquiry on this problem.

Firstly, I am finding exactly the same, on Apple OS X, as Marko.  Some KDE apps
are installed with icons that appear on the Apple desktop and in the Apple file
tree for applications: others get just a generic (Apple-related) icon.

Without exception, AFAIK, all the KDE Games (there are about 40 of them) have
icons that work fine in the Apple OS X environment.  And also, AFAIK, all the
games have essentially the same simple icon-installation strategy (they were
mostly drawn by the same artist).  Each game's source contains files
hiNN-app-<name>.png, where NN = 16, 22, 32, 48, 64 and 128 and the
CMakeLists.txt files contain 
kde4_add_app_icon(<name>_SRCS  "${CMAKE_CURRENT_SOURCE_DIR}/hi*-app-<name>.png")
kde4_install_icons( ${ICON_INSTALL_DIR} )

On 23/03/2014, at 7:42 PM, mk-lists@email.de wrote:
On 23 Mar 2014, at 08:56 , mk-lists@email.de wrote:
I haven’t crosschecked with other apps from my long list, but I guess that explains it.

I have found that the ports with an app icon on OSX actually do have an ICNS file installed:
—
$ find /Applications/MacPorts/KDE4 -name "*.icns"
/Applications/MacPorts/KDE4/dolphin.app/Contents/Resources/dolphin_SRCS.icns
/Applications/MacPorts/KDE4/kapptemplate.app/Contents/Resources/kapptemplate_SRCS.icns
—

And yes, all the games seem to have a Contents/Resources/<name>_SRCS.icns file
installed in Apple OS X: and so do a few other KDE apps that also have icons visible in the
Apple OS X desktop.  Vice-versa, the KDE apps with missing icons do NOT have a .icns file.

KDevelop is the only one missing the 128x128 icon, which seems to be the reason for displaying the generic icon in dock if the app is not started.

I do not have KDevelop installed, so I tried the Konqueror browser instead.  Similarly to
what you found, Marko, Konqueror has only a generic icon when it is not running, but
this changes to a nice Konqueror icon as it starts to run, and changes back again when
it finishes.  Now here is the strange part …

The icon Konqueror shows is NOT the one in its repository at:
https://projects.kde.org/projects/kde/applications/kde-baseapps/repository/revisions/master/show/konqueror/pics

The attached tiny screenshot shows two Konqueror icons.  The one on the left is from
the repository (I think it might be just an old KDE 3 icon: there has been no change in
its .png file for 8 years).  The one on the right is what appears in Apple OS X when you
run Konqueror: it also appears in the Dock.

So where is this NEW Konqueror icon coming from?  The files in pics/indicators seem
to be far too small to be a big icon like that.

Cheers, Ian W.