Windows CMD and PowerShell non-black background color

[AE9RB]

Use a standard Windows 10 install, launch PowerShell. The background will be blue unless you changed it. Run the example/demo program. Type a backspace. The line will turn black. You can also use CMD but will have to change the background color to something other than black in the preferences.

The new Windows Terminal and the terminal in my editor work correctly. WSL also works even though it uses conhost.exe like CMD and PowerShell.

[murarth]

The root cause of this bug is in the mortal crate, which linefeed uses for low-level cross-platform terminal functions (and which is also authored by me).

I've submitted a PR on that project that I believe would solve this issue. Can you test it and confirm? murarth/mortal#16

[AE9RB]

Works! Thank you.