Hi Chenthil,
Thank you for your interest in Syncfusion Products.
You can set the BackColor and BackgroundColor of the WizardControlPage and WizardContainer to Color.Transparent. On doing this, they will take the Main Forms Color.
Please refer the sample available in the following link that illustrates this.
http://websamples.syncfusion.com/samples/Tools.Windows/F71903/main.htm If I have misunderstood your requirement, could you please explain in detail, so that I can work in depth and try to send a better solution.
Please refer the sample and let me know if it helps.
Regards,
Anupama