This is a screenshot of Haiku OS running in Qemu (not fullscreen but only the Qemu window region) showing "Haiku" and "Apps" tracker windows and an Installer program.
This screenshot shows Haiku OS (image build from 28th May 2006) running in Qemu under GNOME on GNU/Linux (Arch).
Haiku OS window shows a bash terminal and Tracker (file manager in Haiku and BeOS) window called "Haiku".
Edit: Note also that I have changed the background color as well as added those two indicators (belonging to the ProcessController program) in the top right besides the clock.