Windows 10 includes two personalization modes- light mode is the default mode and works well during daytime, and dark mode uses a dark color scheme in backgrounds and another part of the OS and supported apps, and it's an option more suited for a low-light environment. (Windows Central, n.d.)
You can switch between the light and dark mode using these steps:
- Open Settings.
- Click on Personalization.
- Click on Colors.
- Under "More Options," select the Light (default) or Dark using the "Choose your default app mode" option.