While custom builds like offer a unique look, they come with significant security and legal risks: Windows 7 | Specs, reviews and EoL info - InvGate

The "Dark Edition" name primarily reflects a complete visual overhaul designed to move away from the traditional Windows Aero "glass" look toward a more sophisticated, dark-themed UI.

Windows 7 Dark Edition 2015: Features, Setup, and Security Risks

DirectX 9 graphics device with WDDM 1.0 or higher driver. Risks and Safety Considerations

The OS comes pre-loaded with multiple high-quality dark visual styles, including modified taskbars, start menus, and explorer windows.