Summary

The tray icon title of KeePassXC, at least on KDE Plasma, is written in lowercase characters:

Desired Behavior

IMO, having the title properly stylized, looks much better, along with the other icons:

Possible Solution

I "fixed it" by simply changing the following line:

https://github.com/keepassxreboot/keepassxc/blob/2.4.3/src/main.cpp#L63

Qt doc states:

This property holds the name of this application
If not set, the application name defaults to the executable name (since 5.0).

Now, I'm not a C++ programmer so I wouldn't know if it breaks something else.

Context

This is just for looks, honestly.