Does anyone know of how to apply styles (font color or font weight) to the description of a form element in the editor widget. For example show the text "A description" in red color and bold? Everything I see in the documentation for expressions is about the $feature. Tried html tags.

{
type: "field",
fieldName: "primaryea",
label: "A field",
description:"A description",
input: {
type: "text-box",
maxLength: 20
}
}