This quick tutorial provides some tip about to theme iOS without using Winterbaord.

You can simply replace the PNG images you find in the iOS FileSystem accessing to it with iFunbox, maybe applying a lossless compression to reduce its size. Something you need to clean cache deleting files inside /var/mobile/Library/Caches/ and then Respring.

Unfortunately most of UI elements are bundled inside the Artwork bundles: this short guide will show how to set up the required tool on your Mac in order to decrypt and encrypt these files.

• Install Python 2.7 with this package.

• Open Terminal on Mac: Launchpad, Other folder, Terminal. We also suggest to drag the icon on the Dock bar because you are going to use it very often.

• Type sudo pip install pillow -U and press Enter.

• Download this package and move it in your Home directory (from Finder you can press cmd+shift+H).

• Double click on it to decopress the archive: you will have a folder called artworkThemer containing some file and folders. The sharedArtworkDecrypted folder includes all PNGs file to be customized. Keep in mind that you can't change the dimension of these images.

Everytime you need to build an updated Artwork bundle:

• Move inside the artworkTheme folder with this command from Terminal
  cd ~/artworkThemer

• Run this command to build the new artwork (one line-command):
  ./iOS-artwork.py create -a ./sharedArtworkOriginal/Shared.artwork -d ./sharedArtworkDecrypted -c ./sharedArtworkEncrypted/Shared.artwork

• Replace the existing Shared.Artwork file in /System/Library/Frameworks/UIKit.framework with the new one that you will find in sharedArtworkEncrypted folder, using iFunbox

The Grayd00r installation tool have been developed using the QT Framework and QT Creator. This offers a cross-platform compatibility and the project is easy to compile on any machine, without any kind of configuration.

To contribute to the installation tool source code or compile by your own, you need to download the QT Online installer from the official website and complete the installation on your computer (Windows and OSX).

Download the latest Gray00r release and decompress the archive: you will find the source folder with the QT project inside. Just double click on Greyd00r.pro file to set up the envirnment for development.

The Installation tool is divided in four main phases:

• Check if the device is eligible for Grayd00r installer

• Check iTunes installation and device activation status

• Jaibreak using the CoronaA5 jailbreak as described above

• Inject the Grayd00r Installer application along with Cydia bundle

• The user is promted to launch the Installer app to download Grayd00r customization files

This quick tutorial requires that you already set up theos folder inside your home directory. Please read the first part of the Application Development guide if you don't.

Everytime you want to start to develop a new tweak for jailbroken devices, follow the following steps.

• Move inside the theosProjects folder with this command from Terminal: cd ~/theos/theosProjects

• Create a new project with this command from Terminal: ~/theos/theos/bin/nic.pl

• Answer to the questions provided by New Instance Creator (NIC): choose 5 to create a Tweak, give the name of the Tweak, write com.d00r.[yourTweakName] as package name, your name as Author, add a filter to specify where the tweak should be active (for example com.springboard.com) and finally don' specify any application to terminate just pressing ENTER.

Your project has been created. Start editing the source that you will find at this location: home, theos, theosProjects, [yourTweakName]. The three files that you will have to use for your projects are just these:

• In the [yourTweakName].plist you will find the filter you specified during the project creation and you can eventually modify it.

• In the Tweak.xm modify the content of any method to create your tweak. Delete all the content and copy this example

  #import <SpringBoard/SpringBoard.h>
  #import <UIKit/UIKit.h>
  %hook SBApplicationIcon
  -(void)launch{
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"d00r Tweak"
      message:@"App starts" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    [alert show];
    [alert release];
    %orig;
  }
  %end
  

• In the Makefile write the following line after the TWEAK_NAME row to add the UIKit Framework, or others you need:

  [yourTweakName]_FRAMEWORKS = UIKit

The final step is building your Debian package to publish on Cydia or install directly on your jailbroken device using iFile.

• Move inside the theosProjects folder with this command from Terminal:
  cd ~/theos/theosProjects/[yourTweakName]

• Force to use the iOS5.1 SDK with this command
  export SYSROOT=~/theos/theos/sdks/iPhoneOS5.1.sdk

• Compile the tweak and build the Debian package: make package.
  You will find the .deb file inside the project folder.

But the work of many people is making Grayd00r better and better:

• iPhone Dev Team, pod2g, planetbeing, saurik, pimskeks, p0sixninja, MuscleNerd and xvolks:
  for cinject tool used as vector for Grayd00r Setup application

• Gianmarco: graphic designer for icons

• Saeed Rezvan: UI theming

• Ashikase: for providing ShowCase source code

• Ryan Petrich: inspired notification center tweak providing the FastBlurredNotificationCenter source code

• iHeli0s: for his Safari-UniBar tweak