SVGeneration (http://www.svgeneration.com/) is a website that helping us generate pretty and awesome SVG background image. It has over 50+ pattern let your to choose. The most awesome thing is all of the patterns allow your customize the color, size of the patterns and more… It may be very helpful to fancy your app
SVGeneration also provides list of articles talking about SVG and tutorials SVG and Tools. And the most awesome thing is SVGeneration is under MIT license, which means you can free to use it.