how to change update-center-api splashscreen

Hello tomwheeler, snake-john

I hope you are doing well !

I am developping an application using netbeans plaform and I want to customize updater splash.
I tried 
Code:
branding/modules/updater.jar/org/netbeans/updater/resources/updatersplash.gif

 but it didn't work; 
I also tried 
Code:
branding/modules/ext/updater.jar/org/netbeans/updater/resources/updatersplash.gif

 but nothing.

Did you find the solution ? can you share it with me ?

Sincerely,
Stéphane.




Attachments: 
http://forums.netbeans.org//files/capture_203.png