By default, iOS 7 has some fancy wallpapers included, but sometimes you just want a simple solid color. This will be a lot more efficient as we only need to store a single pixel in memory, and you can remove transparency effects to reduce some strain on graphics processing (set opacity to 1).
You can choose a dark color which is a lot easier on your display and battery life, and it also helps the new flat icons stand out a lot more against the background. Another added bonus, is that it’s much friendlier on your eyes when using it at night, and will provide a good amount of contrast in bright sunlight.
I’ll take any and every performance improvement I can take when running iOS 7 on an iPhone 4 (non-S)…
- Open Mobile Safari (web browser) and go to http://www.1x1px.me
- Tap the colored box, or enter a color number that you’d like to use as the background or wallpaper (setting opacity to 1 will remove any transparency effect)
- Tap the Download button – the next screen will look blank – give it a minute to load then proceed
- Tap the Share button (box with up arrow)
- Choose Save Image (box with down arrow)
- Go to Photos app (from the homescreen)
- Find the color image you just saved – it should be the first picture in your Camera Roll
- Tap the Share button (box with up arrow)
- The color image should be selected, tap Next
- In the bottom of the Share screen, choose Use as Wallpaper
- Tap Set
- Choose whether you want it to be just on your Lock Screen, Home Screen, or both.
Enjoy!
Initial idea taken from ominx at macrumors.