Some elements of iOS's design, like its minimal color palette, are what make Apple products unique, helping to produce a clean, sleek user experience. But after you jailbreak, that all goes out the window. Once you've tried things like theming your status bar, changing your icons, or applying a new lock screen, you'll never see your iOS device in the same way again.
So, for the sake of your personally-themed device, let's show you how to set a custom color for the on/off status of switches on your iPad, iPhone, or iPod touch, instead of the stale green/gray you've grown accustomed to.
Through the stock Settings app on your iOS device, scroll down and select the Tintch preferences. You'll be able to adjust the color of the switches in both on and off states.
Once you're set, all you have to do is close out any open apps to apply the changes and toggle a few things on or off to see it in action.