I'd say it's quality control standards because we have to look at the signature more closely.

我认为这是质量控制标准，因为我们必须更仔细地查看签名。

It's completely automatic for standard text and web controls, so your apps may actually already support it.

对于标准的文本和网络控制来说它是完全自动的，因此你们的应用程序其实没准早已经支持它了。