The "problem": It is not clear where the message comes from. So I want to suggest to add a caption to all messages (and dialogues?) which don't have one at the moment.
The dialog in the screenshot would then have the title "Upload Error", as this particular dialog is shown immediately after the user attempts a drag&drop upload into the editor window.
Would a title really help to clarify the source of the alert?
Ryan Demmer
Lead Developer / CEO / CTO
Just because you're not paranoid doesn't mean everybody isn't out to get you.