New Cydia tweak called SleekSheets allows you customize the look of iOS 9 action sheets that appear when user input needs to be selected from a menu of options. With this SleekSheets installed you can control their appearance. This jailbreak tweak doesn't seriously modify your action sheets stock look, but it brings some settings that you can use to change this stock look and feel a little bit depending on your tastes. Among the things you can mess with are the flushness of the menu with the sides of your display, the roundness of the corners, removing the separator lines, and even hiding the unnecessary cancel button from the interface on your device.
How To Customize The Look Of iOS 9 Action Sheets
In order to get the ability to customize the look of iOS 9 action sheets on your jailbroken iOS 9.3.3 iPhone head to Cydia and download SleekSheets tweak absolutely for free. Once done install it.
The SleekSheets tweak adds a preferences pane to the Settings app where you can change your action sheets look according to your personal liking. You'll find a special test button called Action Sheet Preview that allows you see to your configurations in real time. So hit it to see the results.
Here are four screenshots examples to show you how SleekSheets tweak effects work.
Before/After flush edges
Before/After hide separator lines
Before/After rounded corners
Before/After hide cancel button
All of the above changes are aesthetic apart from last option to hide the Cancel button, which for the most part doesn’t impact functionality as you can still click anywhere outside of the action sheet menu to dismiss it, making the button redundant in the first place.
Remember that all the settings you'll make will impact iOS system-wide, in all of apps on your jailbroken iOS 9 device.