版本：2.9.3
- https://cdn.bootcdn.net/ajax/libs/tsparticles-shape-rounded-rect/2.9.3/tsparticles.shape.rounded-rect.js
- https://cdn.bootcdn.net/ajax/libs/tsparticles-shape-rounded-rect/2.9.3/tsparticles.shape.rounded-rect.min.js
tsParticles rounded rectangle shape