When I open the new Docker Connection wizard (clicking on the link in Docker Explorer) and no running Docker daemon is detected, there is no way to know this. If I know how this works, then I will know that a detected docker would result in prefilled fields in the Wizard. But if I don't know this, I can be easily confused. There is no warning or anything. And what's worse, I can even click Finish to create the connection. It should be disabled unless I select custom values in case Docker was not detected.
Upstream bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=469635