Colortest for PowerShell

colortest.ps1

$T='gYw' # The test text

Write-Host "                 40m     41m     42m     43m     44m     45m     46m     47m"

$fgs = @(
  '    m',
  '   1m',
  '  30m',
  '1;30m',
  '  31m',
  '1;31m',
  '  32m',
  '1;32m',
  '  33m',
  '1;33m',
  '  34m',
  '1;34m',
  '  35m',
  '1;35m',
  '  36m',
  '1;36m',
  '  37m',
  '1;37m'
)
$fgs | ForEach-Object {
  #$FG = ($fgs | %{ $_.Trim() }) -join ''
  $FG = $_
  Write-Host " $FG $([char]27)[$($FG)  $T  " -NoNewline
  
  @('40m', '41m', '42m', '43m', '44m', '45m', '46m', '47m') | ForEach-Object {
    $BG = $_
    Write-Host "$EINS $([char]27)[$FG$([char]27)[$BG  $T  $([char]27)[0m" -NoNewline
  }
  Write-Host ""
}
Write-Host ""