Desktop Entry icon not appearing: how to diagnose?

[kqlnut]

here is are the ownership, permissions, location and content.

Code:

mobian@mobian:/usr/share/applications$ la -l | grep dark -rw-r--r-- 1 root root   270 Mar 14 11:15 dark-light.desktop mobian@mobian:/usr/share/applications$ cat dark-light.desktop [Desktop Entry] Actions=Light;Dark; Type=Application Name=Day-Night GenericName=Theme Switch Comment=Theme Switch Icon=contrast TryExec=gsettings Exec=notify-send ThemeSwitcher "Long Press for Theme Color Options" Terminal=false Categories=Settings;Theme;Colors;Session

Seems like you just didn't notice that the code window in the thread you copied the code from is scrollable and there is more code below. I also didn't notice it when I first looked at it because the scroll bar only appeared when I tried to scroll.