A direct UI screenshot of a fictional, unique 3D interior design software named "Architron 3D". The application features an original dark-mode user interface with custom menus and no text errors. The central 3D viewport displays a stylized digital clay model of a luxury double-height living room, matching the reference geometry. The design features a distinctive vaulted wooden tile ceiling, a central golden cube fireplace structure, and a smooth curved balcony wall on the right with round supporting columns. Clean matte gray and white shaders, visible blueprint grid lines, no photographic textures. The main structural curved wall is selected and highlighted with a vibrant blue vector wireframe grid outline. An open material settings panel shows a color wheel selecting a warm milky-white paint texture. Fictional brand logo "Architron 3D" in the top bar, clean CAD toolbars, crisp text, professional 8k resolution --ar 16:9
