Welcome to the WPF feedback portal. We’re happy you’re here! If you have feedback on how to improve the WPF, we’d love to hear it!>
Thanks for joining our community and helping improve Syncfusion products!
https://www.syncfusion.com/downloads/support/directtrac/general/ze/ProgressBar-626336529
Replication Procedure:
Run the sample
You can see the secondary content added with application resource even if did not set this property in Step ProgressBar