On KDE, the tray icon displays an incorrect tooltip text

[Nohus]

When I hover over the tray icon, I see the tooltip "Compose Tray", instead of the tooltip I am setting in code. This is on KDE.
I assume it's because of this part of code:

runCatching { go.Systray_SetTitle("Compose Tray") }

It should probably use the tooltip argument instead of being hardcoded to "Compose Tray".