Using powershell remove the site theme
The site theme will be changed to Default(No theme).
$site=Get-SPSite "http://ctsinmbpmoss:1111/sites/sample"
$web=$site.OpenWeb()
[Microsoft.SharePoint.Utilities.ThmxTheme]::RemoveThemeFromWeb($web,$false)
$web.Update()
$web.Dispose()
$site.Dispose()
Loading

Join the conversation! Your thoughts help the community grow.