If you checked recently the latest version of Apple’s proprietary reading app, iBooks v1.5 you may have noticed the fact that it has a theme that eases the effort on your eyes when reading during late night hours. This night reading mode for iBooks can be activated if you go to the fonts menu of iBooks v1.5.
Night reading mode for iPad or iPhone is basically a reversed theme of the default black text on white background. It seems that by reversing it to white on black color, it will cause less strain to your eyes when reading under low light conditions. Another iOS app for iPad or iPhon that offers a similar feature is Instapaper.
How to enable iBooks night reading mode for any iPad or iPhone app on iOS 5.
You could say that the night reading mode for iPad or iPhone is available only for apps like Apple’s iBooks v 1.5 or Instapaper, but you would be wrong. If you want to enable iBooks night reading mode for any iPad or iPhone app, like Safari or a feed reader app you can do that quite easily. Any iOS app that you run on your iPhone or iPad could have that cool looking night reading mode that iBooks has.
Here is the workaround to enable iBooks night reading mode for any iPad or iPhone app. Grab any of your iOS device and go to the Settings menu, and then to the General options followed by Accessibility. Your next step should be to click rapidly three times on the Home button and when asked, you should set the button action to “Toggle White on Black”.
Once done, you should press again the Home button so that you will exit the Settings menu. If you want to enable iBooks night reading mode for any iPad or iPhone app, all you have to do is load that app and if you rapidly click three times on the home button the white on black color effect (night reading mode) should be visible.
This effect is quite similar to the night reading mode of Apple’s own iBooks v1.5. If you want to go back to the default black text on white background mode, all you have to do is to click rapidly three more times on the Home button. It’s that easy!
Please take into consideration the fact if you enable iBooks night reading mode for any iPad or iPhone app, you should not use it to view images as all it will do would be to make your pictures look like film negatives.