First, I'm sorry if this is a duplicate, I've searched and could not find this exact issue. -------- Issue: When trying to change an icon for a file or folder through the properties menu in Dolphin, the icon does not change. ------------ Solution: The problem is because one or all of these files/folders are not created automatically by Dolphin (Dolphin will append errors to ~/.xsessions-errors if these files/folders do not exist): ~/.local/share/applications/ ~/.local/share/applications/mimeapps.list ~/.config/mimeapps.list ~/.local/share/mime/ ~/.local/share/mime/packages/ Manually creating all these files/folders fixes the issue. Reproducible: Always Steps to Reproduce: 1. Open Dolphin. 2. Right click on a folder. 3. Click Properties. 4. Click the icon under General. 5. Select an icon. 6. Click OK. Actual Results: The original icon is still in use. Expected Results: The new icon should be used. This issue affects every distributions I've tested: Arch Linux, OpenSuse Tumbleweed, Manjaro, KDE Neon.
If you are using Plasma 5.6.5, and this is not fixed, please add a comment to bug 356237. *** This bug has been marked as a duplicate of bug 356237 ***