spectre.console/docs/input/figlet.md

Title: Figlet Order: 5

Spectre.Console can render FIGlet text by using the FigletText class.

Default font

AnsiConsole.Render(
    new FigletText("Hello")
        .LeftAligned()
        .Color(Color.Red));

 _   _          _   _          
| | | |   ___  | | | |   ___  
| |_| |  / _ \ | | | |  / _ \ 
|  _  | |  __/ | | | | | (_) |
|_| |_|  \___| |_| |_|  \___/ 

Custom font

var font = FigletFont.Load("starwars.flf");

AnsiConsole.Render(
    new FigletText(font, "Hello")
        .LeftAligned()
        .Color(Color.Red));