As designed Thread Prefix have no formatting in popups

[ragtek]

The thread prefix isn't formated in the js overlay.

Check the attachment (left is the overlay, and on the other side is the same page loaded in an new window without js)

 

[Jake Bunce]

The thread prefix isn't formated in the js overlay.

Check the attachment (left is the overlay, and on the other side is the same page loaded in an new window without js)
View attachment 28019

This appears to be intentional. It is the result of this CSS:

Admin CP -> Appearance -> Templates -> thread_prefixes.css

.breadcrumb span.prefix,
.heading span.prefix
{
	@property "breadcrumbTitlePrefix";
	font-style: italic;
	font-weight: normal;
	background: none;
	padding: 0;
	margin: 0;
	border: 0 none black;
	border-radius: 0;
	display: inline;
	@property "/breadcrumbTitlePrefix";
	color: inherit;
}

Though you can argue that this shouldn't be styled differently. I will let the devs decide.

 

[Mike]

This is intentional. As another example, you can see what it looks like when a prefix is within a bread crumb.