Support for no background colour about powerline HOT 4 CLOSED

@{
  EscapeSequences    = @{
    Esc    = '�['
    Store  = '�[s'
    Recall = '�[u'
    Clear  = '�[0m'
  }
  ExtendedCharacters = @{
    ColorSeparator        = ' '
    ReverseColorSeparator = ' '
    Separator             = ' '
    ReverseSeparator      = '|'
    Branch                = ''
    Lock                  = ''
    Gear                  = '⛯'
    Power                 = '⚡'
  }
  PowerLineConfig    = @{
    Prompt                 = @(
      (ScriptBlock 'New-PromptText {"╭"} -ErrorForegroundColor Red; if(Write-VcsStatus) {New-PromptText {""} -ForegroundColor Green -ErrorForegroundColor Red}'),
      (ScriptBlock '$executionContext.SessionState.Path.CurrentLocation'),
      (ScriptBlock 'New-PromptText {"|"} -ErrorForegroundColor Red'),
      (ScriptBlock 'Get-Elapsed -Format "{0:mm\:ss\.f}"; if(Get-Elapsed){ New-PromptText {"|"} -ErrorForegroundColor Red}'),
      (ScriptBlock 'Get-Date -f "dd-MMM HH:mm UTCz"'),
      (ScriptBlock '"`n"'),
      (ScriptBlock 'if(-not (Write-VcsStatus)) {New-PromptText {"╰>"} -ErrorForegroundColor Red} else{New-PromptText {"╰"} -ErrorForegroundColor Red; Write-VcsStatus; New-PromptText {">"} -ErrorForegroundColor Red}')
    )
    DefaultAddIndex        = -1
    RestoreVirtualTerminal = $True
    Title                  = (ScriptBlock '"PowerShell"')
    FullColor              = $True
    Colors                 = @(@($null) * 4)
  }
}