Syncfusion Office2019Colorful theme for WPF contains the style resources to change the look and feel of a WPF application to be similar to the modern Windows UI style introduced in Windows 8 apps.
Documentation:...
More information
Prysm is a CLI beutification tool that provides simple and easy manipulation of console colors. This tool formats escape characters, which provides 256 color support to most windows command lines.
Ccr.Terminal package for writing .Net Core 3.1 based terminal applications that write to the console with formatted, colorized output using the ExtendedConsole.XConsole. Variant rewrite of Colorful.Console.