support color output (or redirect to terminal just like vscode's tasks does)

[ImaginaryDevelopment]

somewhat based on: microsoft/vscode#243

I'd really like to have color-preserved/enabled text output from F#Make, but currently
Console.BackgroundColor <- ConsoleColor.Blue; Console.WriteLine("hello world")

still comes out white on black. I've added the _runner flag to tasks.json which of course does nothing for ionide-fake.

I'd like some mechanism for color preserved or enabled text output or a way to have a fake build open up a shell window to stream the output to perhaps?

[ghost]

@ImaginaryDevelopment You can just install output-colorizer extension.

[batjko]

@yielder Doesn't seem to work for me. In fact none of my Output gets colorized for any of these: