JVFloatLabeledTextView Can't adjust the placeholderLabel's x position

Hi,

I wanting to change the text inset of JVFloatLabeledTextView, everything is fine except the placeholderLabel. For content of the UITextView, I just need to adjust the textContainerInset, with floatingLabel, I can see there 2 public APIs is floatingLabelXPadding and floatingLabelYPadding. But with placeholderLabel, it has only one public API is placeholderYPadding.

So I'm wondering how to adjust the placeholderLabel's x position?