Allow Konsole to save an image of the current tab.
An external screenshot tool is pretty trivial to activate and use though. Meta+++Print will use spectacle to take a screenshot of the current app that appears in a nice notification, which can be dragged-and-dropped anywhere. It's super fast and super nice and it works in any app, so you don't need to learn an app-specific feature.
I'm not necessarily opposed to this, but I feel like we need to probe the expected use case a bit more and make sure we're actually improving the workflow.