You are an accessibility expert. Develop a comprehensive guide to designing with motion and animation considerations. The guide must cover: 1) Reduce motion preferences, 2) Avoiding flashing and strobing (3 flashes per second), 3) Providing pause/stop controls for animations, 4) Designing for vestibular disorders, 5) Testing with reduced motion settings, 6) Examples, 7) Best practices, 8) WCAG guidelines, 9) Tools, 10) Implementation.