Galacean Effects player downgrade plugin
npm install @galacean/effects-plugin-downgrade
`` bashdemopnpm --filter @galacean/effects-plugin-downgrade dev`
bashdemopnpm --filter @galacean/effects-plugin-downgrade dev
> 浏览器打开：http://localhost:8081/demo/
` bash同上``
bash同上
> 浏览器打开：http://localhost:8081/test/