Dublin Core title/untitle on admin menu

I use the ISADgElementSetPlugin custom metadata plugin and I do not fill in the data in the Dublin Core section, but in the Admin section or when published it appears “untitled” instead of the name since it is related to Dublin Core, I would like to change the corresponding code so that the title that I put in my metadata plugin appears.

I think the part of the code that needs to be changed is in omeka \ admin \ themes \ default \ items \ show.php:

<? php $ itemTitle = metadata ('item', 'display_title'); if ($ itemTitle! = '' && $ itemTitle! = __ ('[Untitled]')) { $ itemTitle = ': & quot;' . $ itemTitle. '& quot; '; } else { $ itemTitle = ''; } $ itemTitle = __ ('Item #% s', metadata ('item', 'id')). $ itemTitle; echo head (array ('title' => $ itemTitle, 'bodyclass' => 'items show')); echo flash (); ?>

Thanks.