A New Year's Countdown script

Get-Confetti.ps1

#this must be run in the PowerShell console NOT the ISE
if ($host.name -ne 'ConsoleHost') {
    Write-Warning "Sorry. This must be run in the PowerShell console."
    #bail out
    Return
}

#get window dimensions
$X = $host.ui.RawUI.WindowSize.width
#subtract 5 to accomodate the end of the script
$Y = $host.ui.RawUI.WindowSize.Height - 5

#save current window title
$title = $host.ui.RawUI.WindowTitle

#get an array of console colors
$colors = [enum]::GetNames([consolecolor])

#clear the screen
cls
#for every line of window height counting down
$Y..1 | Foreach {
    #write a randomized colored row
    1..$X | foreach {
        Write-Host " " -BackgroundColor (Get-Random $colors) -NoNewline
    }
    #count down the last 10
    if ($_ -le 10) {
        $host.ui.RawUI.WindowTitle = $_
        [console]::Beep()
        Start-Sleep -Milliseconds 500
    }
}

$msg = "Happy New Year!"

$msg.ToCharArray() | foreach -Begin {Write-Host "`n"} -process {
  Write-Host $_ -NoNewline -ForegroundColor (Get-Random $colors) -BackgroundColor (Get-Random $colors)
} -end { Write-Host "`n" }

#reset the window Title
$host.ui.RawUI.WindowTitle = $Title