The new dolphin does (independent of the actual size) in icon mode only use the 16x16 or 22x22 icons, don’t know which one it is, while it should be 32x32 or 64x64. This is especially weird in case of directories, for the generic icon for inode/directory is completely different to the special folder icons. Reproducible: Always Using dolphin 16.04.1
Created attachment 100247 [details] Dolphin screenshot Screenshot of dolphin showing the incorrect icons for folders
Created attachment 100248 [details] Screenshot of nautilus under precisely the same conditions with the correct icons
Created attachment 100249 [details] Screenshot of System Settings showing 32 bit icons are 'correct'
This problem is seen in Dolphin 15.12.3 installed by (k)ubuntu 16.04.1 (LTS), using the Breeze Dark theme. I am currently running it from gnome 3 (due to unrelated performance issues on KDE), and therefore the display is being handled by GTK instead. I did check dolphin from a regular KDE session with kwin and got the same (incorrect) icons. The symptom of the bug sounds very similar to the those of KDE #350913, which was fixed almost a year ago. I haven't checked directly on the filesystem for the 32 bit icons - I don't know where exactly to look. The incorrect icons extend beyond folders. Filetype icons are also fairly difficult to read when the small (22px and smaller) icons are used to display them.
Problem is fixed in 16.04.2