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I use KDE 5 on Fedora 22.

I want to change the panel icon for an application I use (say, okular). I don't care about how the app icon appears elsewhere (e.g. in the menus) - whether that changes or not is fine. Now, I'm not root on this machine. How can I effect this change?

Note: I don't mean the "quick-launch" icon, which you would see when the application is not running, but the icon on each of the running instances' tabs.

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2 Answers 2

Reset to default
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kmenuedit will allow you do it via GUI

see this other question/answer

https://askubuntu.com/questions/647121/how-do-i-set-custom-application-icons-in-kde

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Look in ~/.config for a file named plasm-org.kde.plasma.desktop-appletsrc.

It will contain something like:

[Containments][25][Applets][35][Configuration][General]
applicationName=GNU Emacs 24
genericName=Text Editor
iconName=/usr/share/icons/hicolor/scalable/apps/partitionmanager.svg
url=file:///usr/share/applications/emacs24.desktop

Change the IconName parameter to whatever you want the icon to be.

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  • Note that editing the file while in KDE session the behaviour can be tricky. I recommend to logout from KDE and edit the file in terminal (Ctrl+Alt+F1, login, edit...).
    – Ikar Pohorský
    May 26, 2016 at 12:59

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