Winterboard: optimizing theme

Discussion in 'Jailbreaks and iOS Hacks' started by vong, Jun 30, 2011.

  1. vong macrumors 6502a


    Jan 31, 2010
    Can someone explain to me what this function of winterboard does? I pressed yes then it took a few minutes to "optimize" my themes. The only difference that i've noticed was that when I ssh into my phone and downloaded my themes, the .png files had no pictures. Is there any benefits to using optimized themes?

    Sent from my iPhone using Tapatalk
  2. hackthatphone macrumors 68000


    Jul 28, 2010
    Apparently Apple adds data to the header of the png files, and skews the color channels which supposedly makes the graphics load faster. Since the png can't be parsed in this format you don't see a picture. Programs like photoshop, etc would also complain about parsing. This is what optimize does. Takes your pngs and translates them to Apple format for quick loading.

    This is why there are numerous programs out there to decode Apple's png format for the iphone.

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