Is there a way we can make Extjs create separate QTips for each invalid form field? So that we can set different styles to each input. In my case, I need to show one of the text fields in yellow (like a warning) and the rest of the fields in red.
By default Extjs will use the same QTip component against each field. Making is difficult to customize styling.

Use the invalidCls property for each field in the form
The CSS class to use when marking the component invalid.