lumopt2 example - Color router

### 📝 Description of the example

Color router optimization example with multiple configuration.

### 📁 Files needed for running the example

Only the .py file is required.

### 💻 Which operating system are you using?

Linux

### 📀 Which ANSYS version are you using?

2026 R1.2

### 🐍 Which Python version are you using?

3.12

### 📦 Installed packages

```shell
ansys-lumerical-core
```