What is the role of execution threads in the Embedder component and why are they used there?

In the Flutter Embedder component, execution threads play a key role in task separation and ensuring smooth application performance.

Main thread roles:

• UI Thread (Main Thread) — responsible for rendering the interface and handling user events.
• GPU Thread — handles graphics rendering using hardware acceleration.
• IO Threads — process input/output, resource loading, and other background tasks.

Using multiple threads prevents blocking the main thread, ensuring interface responsiveness and efficient task execution.

The Embedder manages these threads, facilitating interaction between platform code and the Flutter engine, which is critical for application performance and stability.