Drag and drop to system tray

[Martin Bammer]

"Also, since most System Tray icons are applets which hardly ever
handle any files."

You forgot about applications like Telegram, Skype, etc. These
applications indeed accept files for sending.
Currently if I want to send a file via drag and drop I have to open the
window (e.g. Telegram) first (if it is minimized to the system tray),
then I can drag and drop it.
Wouldn't it be more convenient for the user to have DnD support in the
system tray?

I think Apple has exactly this feature.

Best regards,

Martin