Simple string format to handle color output in PowerShell

Format-Colors.ps1

function Format-Colors {
    Param(
        [Parameter(Position=0, Mandatory=$true)]
        [string] $Format,
        [Parameter(Position=1)]
        [object] $Arguments
    )
    if($Arguments -is [string]) {$Arguments = ,($Arguments)}

    $result = Select-String -Pattern '\{(?:(\d+)(?::(\d|[0-9a-zA-Z]+))?)\}' -InputObject $Format -AllMatches
    $i = 0
    foreach($match in $result.Matches) {
        $group = $match.Captures[0]
        Write-Host -NoNewline $Format.Substring($i, $group.Index - $i)
        if($group.Groups[2].Success) {
            Write-Host -NoNewline -ForegroundColor $([System.ConsoleColor] $group.Groups[2].Value) $Arguments[$group.Groups[1].Value] 
        } else {
            $arg = $Arguments[[int]$group.Groups[1].Value]
            $value = $arg[0]
            $color = $arg[1]
            Write-Host -NoNewline -ForegroundColor $([System.ConsoleColor] $color) $value 
        }
        $i = $group.Index + $group.Length
    }
    if($i -lt $Format.Length){Write-Host -NoNewline $Format.Substring($i, $Format.Length - $i)}
    Write-Host ""
}
 
Write-Host 'Examples:'
Write-Host
Write-Host "> Format-Colors `"{0:Red} {1:Green} {2:9}`" -Arguments 'Red', 'Green', 'Blue'"
Format-Colors "{0:Red} {1:Green} {2:9}" -Arguments 'Red', 'Green', 'Blue'
 
Write-Host
Write-Host "> Format-Colors `"Hello {0:10}{1:11}{2:12}{3:13}{4:14}!`" -Arguments 'W', 'o', 'r', 'l', 'd'"
Format-Colors "Hello {0:10}{1:11}{2:12}{3:13}{4:14}!" -Arguments 'W', 'o', 'r', 'l', 'd'
 
Write-Host
Write-Host "> Format-Colors `"{0} {1}!`" -Arguments @{0=@('Hello', '11');1=@('World', 'Magenta')}"
Format-Colors "{0} {1}!" -Arguments @{0=@('Hello', '11');1=@('World', 'Magenta')}
 
Write-Host
0..15 | %{
    $color = [System.ConsoleColor]$_;
    $number = $("{0,2}" -f $_)
    Format-Colors "$number {0:$color}" $color.ToString()
}