Features:
• 2200+ high quality 3D Icons.
• Weekly Updates.
• Alternative Icons.
• Icon Request Tool.
• Icon Search.

On some launchers you need to enter the launcher settings to activate the icon pack. :)

Supports
• Nova Launcher
• Apex Launcher
• Poco Launcher
• One Plus Launcher
• Go Launcher
• ADW2
• Action Launcher
• ABC Launcher
• Aviate Launcher
• Evie Launcher
• Holo Launcher
• ICS Holo Launcher
• Lucid Launcher
• M launcher
• Zero launcher
• V Launcher
• Smart Launcher
• Mix Launcher
• Cool Pixel Launcher
• Lawnchair Launcher
• Evie Launcher
• Super P Launcher
• Rootles Launcher
• Solo Launcher and many more...

If you are using OnePlus launcher just enter the launcher settings: hold your finger on the home screen, then click "home settings" and then "Butterfly Icon Pack".

How to Apply Icons with Butterfly Icon Pack
1- Open Butterfly Icon Pack
2- Navigate to Apply Butterfly Icon Pack
3- Select Your Launcher
4- Enjoy Your New Theme :)