Friggen people don’t know what the details are about Premium Xbox Themes. When Microsoft decided to design the use of Premium Themes, they took modification in the community into consideration. When a theme is created, it will read the background images, dash style, and the sphere stuff. If and ONLY IF themes are Strong Signed (signed by the PIRS or LIVE keys) will it load the further details, such as models, friend’s backgrounds, extra images, etc.
Le Fluffie will create any package (such as themes), but any theme is just a theme, no difference. But only premium theme content is loaded when Strong Signed. So you could certainly create Premium Themes but can only loaded from a Strong Signed package. I have an option for Dev Kit PIRS and LIVE signing, but those are different than the stock Strong keys, they aren’t the same.
HOWEVER, if you have a JTAG’ed Xbox, you can sign a package wif Dev Strong keys, it will work on that Xbox because the Strong Signed check is removed on it, so whatever is in the signature area would just be disregarded.
So people just need to shut up about having a Console (CON) signed package, and don’t come to me being liek, OMGH4X, I haz one ^_~, upload the file and show me then.
EDIT and PS:
*If you want proof, you can take any Premium Theme, erase all Licenses (if any), make it profile and device transferable, and console sign it. The Xbox will only read the default things (wallpapers, sphere, and dashstyle).