Hello guys! This tools allows you to view/edit "body_LZ.bin" files, that contains 3DS theme data. It has a tiny simulator inside, to have a little preview of your work. I also implemented some little tools to let you edit the icon and the description of your theme, and also tryed to fix the USA compatibility. The tools is now updated to the new, more complete, 3dbrew documentation, so it can view more data and some bugs are fixed. Inside there is a simple model of a Kingdom Hearts theme i tryed to create.  Usage: File->Open = You can open any body_LZ.bin, compressed or decompressed. File->Save = Save your new body_LZ.bin File->Export = This exports the currently viewed picture in BMP format, you choose the path File->Import = This lets you import any image in BMP format and replace it to the currently viewed one Sound->Import/Export CWAV = Not supported yet :/ Background Music = Check/uncheck this if you want/don't want bgm in your theme Simulator = Gives you a little preview of the theme  Just edit all the data you want and open the batch script of your region. For now just EUR and USA are supported.  Requirements: Microsoft .NET Framework v4.0 It can hang if it stays in folders with spaces in their name, so be sure to not have spaces in the tool's path.  Issues: The current CIA generated is known to not be installed in GW emunand, of any version. I'm currently trying to understand how to avoid this. My theory is that GW implements some checks, since i didn't patch anything strange in my CFW, and i can run this withouth problems. So for this is just useful to edit and create, not to play. Hoping to solve this soon. Also, this should replace the "Completely Mario" theme.  [v1.1] Download here!  Have fun!