If you’re looking for:
Always download directly from niivu’s official page. Be wary of third-party re-upload sites that might bundle malware. The official files are clean, scanned, and often come with a detailed PDF guide.
This is critical. Installing custom themes on Windows is not as simple as double-clicking a file. Windows by default blocks third-party visual styles. Follow this guide carefully.
When you download a niivu suite, you aren't just getting a wallpaper. These packs typically include: