Yeah the screenshots also have a slight shadow around the window. This reminds me of the KDE Spectacle feature to enable showing window decorations when screens

Yeah the screenshots also have a slight shadow around the window. This reminds me of the KDE Spectacle feature to enable showing window decorations when screenshotting a specific window only. In those cases, at least the shadow is drawn artificially, maybe even the decorations. In fact it's possible that originally these windows didn't even have those decorations, they only got added later by the screenshot tool.