this post was submitted on 19 Jul 2026
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Linux

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Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).

Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.

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kAppIcon: Change individual Linux app launcher icons without root (lemmy.world)
submitted 4 days ago by rayman30@lemmy.world to c/linux@lemmy.ml
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I made a small tool for KDE Plasma (and other freedesktop desktops) that lets you easily customize single app icons:

  • Use your own images or library
  • Copy icon from another app
  • Pick one icon from any installed theme (without switching global theme)
  • Built-in pixel editor to create your own
  • Batch apply, undo, overrides, missing icons overview
  • Import image to turn it into an icon

Completely user-level, safe, and reversible. No manual .desktop editing.

GitHub: https://github.com/rayman1972/kappicon

AUR: kappicon or kappicon-git

Feedback welcome!-

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[–] reader@lemmy.zip 1 points 4 days ago (1 children)

can you update this app so it can modify the flatpak bundle?

[–] rayman30@lemmy.world 0 points 4 days ago (1 children)

Unfortunately that’s not possible with this tool (and not really recommended). Flatpaks are sandboxed and their bundles are read-only by design. Modifying them directly would break the sandbox and cause update problems. What kAppIcon can do is change the launcher icon that appears in your menu and panel for the Flatpak, that works fine. If you want to change the icon inside the running Flatpak app, you’d need a different approach (like runtime overrides or repackaging the Flatpak), which is outside the scope of this tool.