Describe the bug
The system tray icon does not appear on KDE Plasma when using the AUR package installation. The system tray entry shows but displays without an icon.

To Reproduce
Icon naming mismatch between what the application requests and what the AUR package installs:

• Application requests: com.core447.StreamController (verified via D-Bus)
• Package installs: streamcontroller.png at /usr/share/icons/hicolor/256x256/apps/streamcontroller.png

D-Bus inspection shows:
$ qdbus6 :1.79 /com/core447/StreamController/Menu org.kde.StatusNotifierItem.IconName
com.core447.StreamController

But only this icon exists:
$ find /usr/share/icons -name "streamcontroller"
/usr/share/icons/hicolor/256x256/apps/streamcontroller.png

Creating a symlink resolves the issue:
sudo ln -s /usr/share/icons/hicolor/256x256/apps/streamcontroller.png
/usr/share/icons/hicolor/256x256/apps/com.core447.StreamController.png
sudo gtk-update-icon-cache /usr/share/icons/hicolor/ -f

Expected behavior
The tray icon should appear without manual intervention.