Which file contains user registration info?

I want to update the "successful" registration message, which file is it under?

 

Hello,

wp-content\themes\videocrafttheme\functions\registration_panel
registration_panel folder contain files regarding to registration.

Thanks & Regards
Pramod Patel

 

Thank you, Pramod. Under which line can I "echo" a message that says registration was a success?

 

Hello,

Unfortunately there isn't a way to do that .Sorry.

Thanks & Regards
Pramod