Powershell hyphen argument color

Question

I want to change the color of the -a, --All arguments in Powershell. I have changed the string and command colors of my in Powershell like this.

Set-PSReadlineOption -TokenKind String -ForegroundColor Cyan
Set-PSReadlineOption -TokenKind Command -ForegroundColor Magenta

I cannot find how to change the hyphen arguments color.

Is it under Set-PSReadlineOption or somewhere else?

Answer 1

You're looking for the Parameter token kind:

Set-PSReadlineOption -TokenKind Parameter -ForegroundColor Red

The above will color parameter tokens (like -a) red, but not bare string tokens prefixed with -- (like --All), since they're technically not considered parameter tokens by the parser.

---

As Rabeez Riaz notes, in PSReadLine 2.0 the syntax is slightly different:

Set-PSReadLineOption -Colors @{ Parameter = 'Red' }

The new syntax allows you to set multiple token colors simultaneously:

Set-PSReadLineOption -Colors @{
  Parameter  = 'Red'
  String     = 'Cyan'
  Command    = 'Green'
}