cocos2d-x: JPG image becomes dark

Question

I use JPG image as background image in my game to reduce size. It's working fine in >iOS 5. But in iOS 4.3.3 it become dark. It will be great if anyone can explain exactly why this problem can be occurred and how it can be resolved.

Thanks!

Answer 1

The solution of this problem can be found here. At the same time another thing we should keep in mind, "JPG formate takes much longer times to load than PNG formate"