Install Good Lock and Theme Park:
• Open the Galaxy Store
• Search for Good Lock and install it
• In Good Lock, find and install the Theme Park module
    
Open Theme Park and Select Icons:
• Open Theme Park
• Tap Icons and then tap the "+" (Create New) button
    
Choose or Create an Icon Pack:
• Pick an installed icon pack
• Save your changes with a name
    
Apply the Icon Pack:
 • Tap your new icon pack and select Apply