Extension point for Theme Builder template card header

[Hug0-Drelon]

Describe the Problem

Description

On multilingual sites, Theme Builder often contains multiple templates with similar names across languages (e.g. "Header", "Footer", "Single Post"). We need a supported way to show per-template metadata — such as a language flag — directly on the card, next to the title.

What works today

Elementor Pro exposes a server-side filter:

apply_filters( 'elementor-pro/site-editor/data/template', $data );

This allows attaching extra per-template data (e.g. a flag URL). Other features already use this filter, which suggests the data layer is intended for extension.

The gap

In SiteTemplateHeader, the title is rendered as plain text:

<Heading tag="h1" title={ title } variant="text-sm" className="eps-card__headline">{ title }</Heading>

Because React escapes title, there is no supported way to render extra UI from that filtered data. HTML in title is not an option.

Use case

Any plugin that needs to display metadata on Theme Builder cards: language, translation status, site/group, custom badges, etc.

Environment

• Elementor Core 4.x
• Elementor Pro 4.x
• Context: Theme Builder / Site Editor app

Propose a Solution

Request

Please provide an official extension point around the template card header, for example:

• A SlotFill next to the headline (e.g. site-editor/template-card/header-after-title)
• A structured field in template data that SiteTemplateHeader can render (image, badge, etc.)
• A documented $e hook fired when the card header renders

Additional Context

Using DOM marker + TreeWalker, not ideal because of React re-renders.

Agreement

• I confirm I have read and followed all the guidelines and instructions outlined in the Feature Request form.
• I agree that my discussion may be closed without further action if it doesn't meet all the requirements outlined in the Feature Request form.