While starting the multitasking dock, the icons move upwards.
Check out the Google icon. Why does it suddenly have a black background. I've tried changing several png files but it doesn't help or I haven't found the right file.
I don't think it has anything to do with the "theme name"/bundles/com.google.googleMobile folder.
Located in //System/Library/PrivateFrameworks/MobileIcons.framework/
What it does is create the "rounded" border on all appstore downloaded apps. It also causes the problem I mentioned previously regarding the google icon.
The fix? Well there's two solutions, one proven and one theoretical.
Well it's a bit complicated.
1. SSH to //System/Library/PrivateFrameworks/MobileIcons.framework/
I used i-funbox because it doesn't corrupt the png you copy to your harddrive.
2. Copy AppIconMask.png to your harddrive
3. Now SSH to your theme personally its Buuf2. Library/Themes/Buuf2/Bundles
Create a folder named com.apple.mobileicons.framework (remember case sensitive)
4. copy the AppIconMask file you have on your harddrive to that folder.
5. SSH to var/mobile/Library/Caches
delete com.apple.IconsCache. Also delete com.apple.Spring...erswitcherLinen (just to be safe)
6. Restart your phone. When the starts and you press the home button twice to start multitasking you'll notice no changes???
How can this be fix you might ask...well we're not finished.
7. SSH to Library/Themes/Buuf2/Bundles/com.apple.mobileicons.framework
and delete the file you just placed there. That is AppIconMask.png
8. Now for the magic.
Do not restart your phone, "respring" your phone!!!
Respringing your phone clears some cache files that linked the new png you placed in your theme. Now that it's not there any more it doesn't have a file to use. So no more black "f*cking" borders.
Eurika!!
Now for the second solution which I haven't tried but should theoretically give the same result.
1. SSH to: //System/Library/PrivateFrameworks/MobileIcons.framework/
2. Move/rename/copy and delete the AppIconMask.png-file