價格：免費
檔案大小：14 MB
版本需求：OS X 10.11 或以上版本，64 位元處理器
if you want to create a pure color video to use it as background, This is the App you are looking for.
The App can:
1. choose any color;
2. set video resolution to any size;
3. set any duration of video;
4. generate noise sound if need.