iPhone images are all transparent

[lynkynpark86]

Hello,
I am building a theme, and I wanted to copy some images from iOS to change and add to my theme. Whenever I copy an image to my mac (with cyberduck or macfusion), they are the right dimensions, but are all transparent. If there something I'm doing wrong? Please help!
P.S. does anyone know where the hud.png file is in 4.2.1? i can't find it in /System/Library/CoreServices/SpringBoard.app

 

[apmorency]

The png's aren't standard.

This: "The PNG images found on the iPhone cannot be viewed by a standard image viewer. Apple, for some unknown reason, implemented a non-standard PNG format that includes an extra data before the PNG header and compressed image data without the traditional headers and footers. In addition, the red blue pixels are flipped (BGRA instead of RGBA). All iPhone PNG images appear to follow this format"

from this http://modmyi.com/wiki/index.php?title=Iphone_PNG_images&diff=next&oldid=12205