'cause of the big fat "purchase" button on DA - didn't see the tiny dropbox link

To clear the icon cache, you need to remove /var/tmp/kdecache-$USER/icon-cache.kcache outside KDE.

bcooksley wrote:To clear the icon cache, you need to remove /var/tmp/kdecache-$USER/icon-cache.kcache outside KDE.

That's what I did bcooksley: I logged out, logged into one of the terminal session (CTRL-ALT-F1) and cleared the cache, then logged in again.

Is this https://bugs.kde.org/show_bug.cgi?id=256856 ?
If you launch a dolphin instance, then change the theme, activate the dolphin window and press F5 - does that show you the correct icons?

luebking wrote:Is this https://bugs.kde.org/show_bug.cgi?id=256856 ?
If you launch a dolphin instance, then change the theme, activate the dolphin window and press F5 - does that show you the correct icons?

luebking, this is a different issue (maybe connected?). This bug is the reason why you need to clear the cache manually when you apply a new theme, otherwise some of the icons will not be correctly applied.
The problem we are discussing here, instead, is not fixed even when manually clearing the cache.

Hmm, i'm suspecting the code which handles generating the thumbnail is unable to handle custom icons. It likely can handle icon themes fine though.
If you enable all debug areas (using kdebugdialog), is anything relevant output into ~/.xsession-errors when you attempt to view folder previews?

bcooksley wrote:Hmm, i'm suspecting the code which handles generating the thumbnail is unable to handle custom icons. It likely can handle icon themes fine though.
If you enable all debug areas (using kdebugdialog), is anything relevant output into ~/.xsession-errors when you attempt to view folder previews?

Tried it right now: unfortunately nothing relevant is displayed

Unfortunate. If you override the icon name in the theme, instead of changing the icon through the file associations panel directly, does that work?

You will need to create the appropriate folder structure (essentially mirroring /usr/share/icons/themeName/) under ~/.local/share/icons/themeName/ and place files with the appropriate names there. My apologies if that doesn't make sense.

Gonna try it and report back.

I do not get dolphin icons correct even when deleting (unlinking, not wiping) the cache (though dolphin is a new instance)
However I /do/ get dolphin icons updated when having a dolphin instance running, change the theme, enter the dolphin window and trigger an update (F5) - thus I wondered whether you tried this on your case.

bcooksley wrote:Unfortunate. If you override the icon name in the theme, instead of changing the icon through the file associations panel directly, does that work?

You will need to create the appropriate folder structure (essentially mirroring /usr/share/icons/themeName/) under ~/.local/share/icons/themeName/ and place files with the appropriate names there. My apologies if that doesn't make sense.

bcooksley, the "Flamini" icon theme that I am using is not located under /usr/share/icons, instead it is under ~/.kde4/share/icons. Is it ok?
Can I proceed to mirror the folder structure under ~/.local/share/icons or should I do something else?

luebking wrote:I do not get dolphin icons correct even when deleting (unlinking, not wiping) the cache (though dolphin is a new instance)
However I /do/ get dolphin icons updated when having a dolphin instance running, change the theme, enter the dolphin window and trigger an update (F5) - thus I wondered whether you tried this on your case.

luebking, what do you mean by "unlinking, not wiping"?
I have always been successful by just deleting /var/temp/kdecache-$user/icon-cache.kcache, but for the aforementioned problem with previews of folders containing pictures.
I'll try what you suggest, however.

rm /foo/bar "unlinks" the inode (the applications still hold it open "as it was")
echo "" > /foo/bar "wipes" it (though in a very naive way that will very likely cause crashes when performed on the cache. just for illustration!)

luebking wrote:rm /foo/bar "unlinks" the inode (the applications still hold it open "as it was")
echo "" > /foo/bar "wipes" it (though in a very naive way that will very likely cause crashes when performed on the cache. just for illustration!)

luebking, thank you for your explanation.
However, I deleted (unlinked) it while I was not logged into KDE, so there was no application keeping it open (I guess).

In the case where the icon theme already exists under your home directory, simply replace the icons in it directly. Make sure you replace all the various sizes with appropriately sized icons. After doing that you'll need to re-wipe the icon cache again.