[HELP] What is best way to show error message and then close application on panic?

[art-den]

Hi
I want to show message for user if panic occurs. I tried to use crate msgbox from panic handler but for linux and if panic happens in not-main thread I see no message.
What is the idiomatic way in gtk-rs to do this?

PS: I already set panic = "abort" in my Cargo.toml