Automated RGB LED Circuit Design

I'm in need of an expert to design a circuit for RGB LEDs that will automatically change colors for decorative lighting. This circuit should be microcontroller-based.

Key requirements:
- Design a circuit for RGB LEDs
- Ensure the circuit is automated, not requiring manual control
- Use a microcontroller as the control system
- Experience in PCB design and fabrication is necessary

Ideal skills and experience for the job:
- Proficient in circuit design, particularly with RGB LEDs
- Extensive experience with microcontroller-based systems
- Knowledge in PCB design and fabrication
- Prior work with decorative lighting systems