Melatonin Blur is a batteries-included, cross-platform CPU blur and shadow compositing library for the JUCE C++ framework.

Batteries-included means it aims to give you everything out of the box:

• 👩‍🎨 Figma/CSS-accurate drop and inner shadows on paths
• 🔠 Drop and Inner Text shadows
• 💅🏼 Supports both filled and stroked paths
• 🌇 ARGB image blurs
• 🚀 Fast!
• 🔎 Retina-friendly (context scale-aware)
• 🍰 Trivial to layer multiple shadows
• ⚙️ Behind-the-scenes multi-layer caching
• 😎 Debug optimized for high quality of life
• 🤖 Over 1000 correctness tests passing on macOS/windows
• 🚂 Compatible down to macOS 10.13 (progressive speedups on recent versions)

The goal: modern vector interfaces in JUCE (100s of shadows) without having to resort to deprecated solutions with lower quality of life (looking at you, OpenGL on macOS!).