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Correct Default.png color display on iPhone

I am using the Default.png method to create a popup screen. I use the same file for my background, and Default.png (except default.png has a 20px status bar at the top).

However, iphone does not display them in them equally. The Default.png file is displayed darker than the background, so it painfully manifests itself when the application loads.

As a good example of what I mean, see below:

Splashscreen is left, loaded screen is right

The image on the left is Default.png, while the image on the right is when the application loaded. Here the difference is subtle, but when the whole image changes, it looks pretty sharp.

Is this a problem with png color formatting? Or is it an iOS feature where Default.png looks a little darker?

It might not be worth mentioning, but I'm using Monotouch to develop my application, I doubt it will have anything to do with it.

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2 answers

Solved a problem. The designer sent me new versions of the background, and Default.png now displays the correct color.

I have the feeling that I kept the previous version with a different color profile in the background, so why it was displayed differently.

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I had this problem after editing a screenshot with OSX Preview to cut the status bar (as needed for iPad splashes). The preview pasted a color profile, and the screen saver looks darker than the real thing in the device.

If you open an image using GIMP, it displays a dialog box for converting the color profile to SRGB. Take it (click "Convert") and save the image. This captures the color difference.

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