h1 heading in placemarks

Hi.
When I checked the page source I noticed that every placemark in my map has <h1> heading.

For example

<h1 id="headContent4" class="placemarkHead">'+
'Museum of Byzantine Culture'+
'</h1>

Is this good for SEO?

These placemarks are in an article called for example <h1>White tower</h1>

Hi.

You can change h1 tag to other.
It is in component options

"HTML tag for InfoWin Title" - H2 or H3

It works in component and module. For plugin it will be in next release

Well I use plugin and these are great news for the next release.

I cannot find it in the options of the component

It is options for j2.5. As you know, joomla 2.5 is not supported now.

I just only support my extensions for j2.5, without new features in it.

I only develop j3.x version of extension.

So there will be no updated plugin with this new feauture?For h1 heading?

Which php file should I change?