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https://issues.apache.org/jira/browse/CB-1495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549087#comment-13549087
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Patrick Mueller commented on CB-1495:
-------------------------------------

I believe it's possible to create "indexed palette" PNGs as well as "RGB 
triple" PNGs [1].  As to whether we have the technology to create these, and 
whether iOS will display them, are separate questions.  I'm guessing the answer 
is "yes" to both.

[1] http://www.w3.org/TR/PNG-Chunks.html
                
> iOS default splash screen images take up several megabytes
> ----------------------------------------------------------
>
>                 Key: CB-1495
>                 URL: https://issues.apache.org/jira/browse/CB-1495
>             Project: Apache Cordova
>          Issue Type: Bug
>          Components: iOS
>    Affects Versions: 2.0.0
>         Environment: iOS, XCode 4.5, Cordova 2.0.0
>            Reporter: Brion Vibber
>            Assignee: Shazron Abdullah
>            Priority: Minor
>              Labels: splashscreen
>             Fix For: 2.4.0
>
>         Attachments: crushed.zip
>
>
> The default splash screen images for iOS are quite large; the Retina iPad 
> images are 1.5 megabytes for each orientation!
> $ ls -lh
> total 8680
> -rw-r--r--  1 brion  staff   1.5M Sep 17 15:18 Default-Landscape@2x~ipad.png
> -rw-r--r--  1 brion  staff   413K Sep 17 15:18 Default-Landscape~ipad.png
> -rw-r--r--  1 brion  staff   1.5M Sep 17 15:18 Default-Portrait@2x~ipad.png
> -rw-r--r--  1 brion  staff   412K Sep 17 15:18 Default-Portrait~ipad.png
> -rw-r--r--  1 brion  staff   342K Sep 17 15:18 Default@2x~iphone.png
> -rw-r--r--  1 brion  staff    92K Sep 17 15:18 Default~iphone.png
> They should probably be recompressed to be a bit smaller; the gradients in 
> the background may be at issue.

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