Why does Tree ignore the markup elements and the guide lines setting?

[yansklyarenko]

I have a very basic example of Tree usage, basically stolen from the docs:

var root = new Tree("Root").Guide(TreeGuide.BoldLine);

root.AddNode("[yellow]Foo[/]")
    .AddNode("[strikethrough blue]Qux[/]");
root.AddNode("[yellow]Bar[/]");

AnsiConsole.Render(root);

However, the output is not as expected:

As you can see, the colors are applied, but the strikethrough markup is ignored. Besides, it seems to ignore the guide line setting as well.

The version of Spectre.Console is 0.39.0. The version of PowerShell is 5.1.18362.1171.

What am I missing? It must be something related to my env, 'cause it's very basic to be unnoticed all this time, but I can't figure out what's wrong. I would appreciate any hint.

[patriksvensson]

@yansklyarenko It doesn't consider your console to support Unicode characters or it thinks your terminal doesn't support ANSI escape sequences. You can override this behavior by setting the terminal encoding to UTF-8 explicitly.

The VT code for strikethrough is also not supported in all terminals.

What does dotnet example info say?

[yansklyarenko]

Thanks for the hint about dotnet example info! The terminal encoding indeed was different, and when I started the PowerShell like this:
Powershell.exe -NoExit -Command "$OutputEncoding = [Console]::OutputEncoding = [Text.UTF8Encoding]::UTF8"
the lines became nice and solid. However, the strikethrough part is still not working.

The dotnet example info now says the following:

[patriksvensson]

Great!

There are no guarantees that text attributes like strikethrough or bold will be displayed since it's up to the terminal to support the corresponding VT codes. What terminal are you using?

[yansklyarenko]

I've just tried it in the Windows Terminal, and it works just fine. Not sure why ConEmu refused to render strikethrough, even after I applied the registry 'hack' described here.

Anyway, I'm unblocked now. Thanks for your help, Patrik! 👍🏿

[yansklyarenko]

For others who might face a similar issue: the strikethrough support is still an open feature request for ConEmu.