Chromium has an option to toggle the native title bar in the context menu of the tabs area. It would be nice to have this on opera as well. I have made a rule in kwin to strip the title bar, but now I only have a "close" button, while "minimize" and "maximize" are missing.
So, it'd be nice if we had a toggle option natively instead of having to use a WM specific workaround.
It'd be also nice to have a "minimize" and "maximize" buttons, not only "close"
[Moved to Opera for *nix]