I found the iscribble, which is a bit different. I can't find this same one. It seems it was posted on mobile.blackberry.com at one time and is no longer. I'm wondering if anyone knows where it's posted now.
That is the original Scribble theme, released by BlackBerry...not iScribble. As mentioned above, it was available through mobile.blackberry.com (for free), but it's now longer available for all devices. If you go to mobile.blackberry.com and it states that this theme isn't available for your device/OS, the last time I checked Plazmic CDK includes all the tools needed to 'remake' this theme...