Need help for setting own wallpaper in themes

now of directions say, select preferred wallpaper wallpaper.png , delete or rename original. how in world rename wallpaper , stick theme???

 

really, no 1 knows? forum has been able help. ive offered donate devs on yet ive never received response.

 

Forums iPhone, iPad, and iPod Touch Jailbreaks and iOS Hacks

• iPhone
• Mac OS & System Software
• iPad
• Apple Watch
• Notebooks
• iTunes
• Apple ID
• iCloud
• Desktop Computers
• Apple Music
• Professional Applications
• iPod
• iWork
• Apple TV
• iLife
• Wireless