How to make a text box as transparent using <g class="gr_ gr_4 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" data-gr-id="4" id="4">powershell</g>
$outputBox = New-Object System.Windows.Forms.RichTextBox
$outputBox.Location = New-Object System.Drawing.Size(1090,100)
$outputBox.Size = New-Object System.Drawing.Size(480,545)
#$outputBox.Font = New-Object System.Drawing.Font("Consolas", 8 ,[System.Drawing.FontStyle]::Regular)
$outputBox.MultiLine = $True
$outputBox.ScrollBars = "Vertical"
$outputBox.AppendText("`n")
$outputBox.ReadOnly = $True
$outputBox.BackColor = "Color.Transparent"
$Form.Controls.Add($outputBox)
Exception setting "BackColor": "Control does not support transparent background colors."
At line:49 char:1
+ $outputBox.BackColor = "Transparent"
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [], SetValueInvocationException
+ FullyQualifiedErrorId : ExceptionWhenSetting