Do you want to customize the alert dialogs on your iPhone without using WinterBoard? Well, A new tweak has been released in Cydia which will allow you to customize the appearance of all alert dialogs on your iPhone. The name of this tweak is AlertArtist. After you have installed this tweak on your jailbroken iPhone it will allow you customize the text color, border color, background color, shadow color, text shadow color, body font, title font of an alert dialog without using the WinterBoard of your iPhone.
AlertArtist tweak is available in Cydia at a price of $0.99 USD. You should note that you will need to have a jailbroken iPhone to install this tweak. If you don’t have jailbroken iPhone then you can follow the steps posted here to jailbeak your iPhone on iOS 4.2.1 with Redsn0w. You can watch the video embedded below to see it in action.