On Monday March 26 2018 16:26:57 Zaiwen Gong wrote: Hi, > To have the icon displayed correctly on task manager in KDE4, two points: > > --you need to have the icon file (.xpm or .png) in folder /usr/share/pixmaps > > --the icon file name has to be all lowercase! A priori you can also right-click on the place where the launcher icon should show, and select an icon of your own choosing. R