Can you post a link to the page in question?
It will then be easier to advise you on which method to use to place the widget (which hook to use) and which CSS is required.
(follow Rikards link above)

/* ==== Header widget area
Logo left, Menu right
Logo right, Menu Left
Logo center, Menu above
==== */
add_action( 'ava_after_main_menu', 'enfold_customization_header_widget_area' );
	function enfold_customization_header_widget_area() {
	dynamic_sidebar( 'header' );
}

/* ==== Header widget area ============
Logo left, menu below
==================================== */
add_action( 'ava_main_header', 'enfold_customization_header_widget_area' );
	function enfold_customization_header_widget_area() {
	dynamic_sidebar( 'header' );
}

after that create your new widget-area on :

_______________________

if you like to have the widget-area always nearby the logo – it might be better to use a filter to place the widget area:
See here a different solution with a widget area inside logo container ;)
https://basis.webers-testseite.de/
tell me – if this is what you like to have – and if your header setting is in this way.

See snippets and basic css for that on: https://webers-testseite.de/fiorettipau/

i inserted to that widget-area a html widget – (copy&pasted html code from an enfold button-row)
Of course, you have to adapt the CSS to your header configuration. And you may also need to set a responsive behaviour.

f.e. if you got a shrinking header – you had to decide f.e. if you set the widgettitle to display none on header-scrolled.

Thank you – but I recommend using the unscaled images

f.e.:
http://www.interior-collection.de/wp-content/uploads/2025/12/IMG_7870-1.jpg : 135kb
http://www.interior-collection.de/wp-content/uploads/2025/12/IMG_7870-1-529×705.jpg : 285kb (imgSize: masonry – 705×705)

so better resolution but less file size.

background on that : search for : avf_jpeg_quality
e.g: https://kriesi.at/support/topic/enfold-creating-images-larger-than-the-orginal/#post-1488786

the css above is the rule from enfold – if you do not want that the width will be set by that – you had to overwrite this rule in quick css.
and it was only a suggestion what could happen on masonries on wide screens. So now i can see your masonry .

After the grid container – you got that section with the masonry.
On Gallery Style – what are your settings there:

sorry – no private content for me – i’m participant as you are.

i thought it was your belgium site on spitsdesign
PS: it is hard to inspect it with DEV Tools – because you merged the css.
PPS: if you just use the minified Versions – this seems to be a better performance on modern browsers. – and it is easier to inspect.

if you only want to get rid of that white overlay – but show on hover the little round icon – try:

.avia_transform .avia-fullwidth-portfolio a .image-overlay {
  background-color: transparent !important;
  opacity: 1 !important;
}
.avia_transform .avia-fullwidth-portfolio a .image-overlay-inside {
  opacity: 0 !important;
}
.avia_transform .avia-fullwidth-portfolio a:hover .image-overlay-inside {
  opacity: 0.8 !important;
}

this is i think the best option to handle the lang files:
it is a only manual patch vor those lang files of LayerSlider.
Or automatic after Plugin Update
Just uploading the lang-files to /wp-content/plugins/LayerSlider/assets/locales folder

You will have than a button on the LayerSlider Admin bar:

/* ========================================================================
 * LayerSlider: Patch for Select Option of lang files
 * Auto-copies language files from uploads to plugin directory
 * Auto-removes language files that were deleted from uploads
 * Auto-patches after plugin updates
 ======================================================================== */

// 1. Patch-Function
function child_theme_patch_layerslider_template() {

    if (!defined('LS_ROOT_PATH')) {
        return false;
    }

    $template_file = LS_ROOT_PATH . '/templates/tmpl-plugin-settings.php';
    
    // Check both locations
    $plugin_locales_dir = LS_ROOT_PATH . '/locales';
    $upload_dir = wp_upload_dir();
    $custom_locales_dir = $upload_dir['basedir'] . '/layerslider/lang';
    
    if (!file_exists($template_file)) {
        return false;
    }
    
    // Create custom locales directory if it doesn't exist
    if (!is_dir($custom_locales_dir)) {
        wp_mkdir_p($custom_locales_dir);
    }
    
    // SYNC language files (copy new/updated, delete removed)
    child_theme_sync_language_files($custom_locales_dir, $plugin_locales_dir);
    
    // Find available languages (now from plugin directory after sync)
    $available_languages = child_theme_get_available_languages($plugin_locales_dir);
    
    if (empty($available_languages)) {
        return false;
    }
    
    $content = file_get_contents($template_file);
    
    // language names
    $language_names = [
        'de_DE' => 'Deutsch',
        'de_DE_formal' => 'Deutsch (Sie)',
        'de_CH' => 'Deutsch (Schweiz)',
        'de_CH_informal' => 'Deutsch (Schweiz, Du)',
        'de_AT' => 'Deutsch (Österreich)',
        // add lang names needed for your uploaded lang files
    ];
    
    // protected default languages 
    $protected_languages = ['auto', 'en_US', 'fr_FR', 'hu_HU', 'uk'];
    
    $modified = false;
    
    // PART 1: Adding missing languages
    $new_options = '';
    foreach ($available_languages as $locale) {
        if (strpos($content, 'value="' . $locale . '"') !== false) {
            continue;
        }
        
        $language_name = isset($language_names[$locale]) ? $language_names[$locale] : $locale;
        $new_options .= "\n\t\t\t\t\t\t<option value=\"" . $locale . "\" <?php echo ( \$custom_locale === '" . $locale . "' ) ? 'selected' : ''?>>" . $language_name . "</option>";
        $modified = true;
    }
    
    if (!empty($new_options)) {
        $search = '<option value="auto" <?php echo ( $custom_locale === \'auto\' ) ? \'selected\' : \'\'?>><?php _e(\'Site default\', \'LayerSlider\') ?></option>';
        $replace = $search . $new_options;
        $content = str_replace($search, $replace, $content);
    }
    
    // PART 2: Removing languages that no longer exist
    foreach ($language_names as $locale => $name) {
        if (in_array($locale, $protected_languages)) {
            continue;
        }
        
        if (strpos($content, 'value="' . $locale . '"') !== false && !in_array($locale, $available_languages)) {
            $pattern = '/\s*<option value="' . preg_quote($locale, '/') . '"[^>]*>.*?<\/option>/';
            $new_content = preg_replace($pattern, '', $content);
            
            if ($new_content !== $content) {
                $content = $new_content;
                $modified = true;
            }
        }
    }
    
    if (!$modified) {
        return true;
    }
    
    // Save
    file_put_contents($template_file, $content);
    
    return true;
}

// 2. IMPROVED: Sync language files (copy new + delete removed)
function child_theme_sync_language_files($source_dir, $target_dir) {
    
    if (!is_dir($source_dir) || !is_dir($target_dir)) {
        return false;
    }
    
    $copied = 0;
    $deleted = 0;
    
    // PART 1: Copy new/updated files from source to target
    $source_files = glob($source_dir . '/LayerSlider-*.{mo,po}', GLOB_BRACE);
    
    // Get list of locales in source directory
    $source_locales = [];
    if ($source_files) {
        foreach ($source_files as $source_file) {
            $filename = basename($source_file);
            $target_file = $target_dir . '/' . $filename;
            
            // Extract locale from filename
            preg_match('/LayerSlider-([^\.]+)\./', $filename, $matches);
            if (isset($matches[1])) {
                $source_locales[] = $matches[1];
            }
            
            // Copy if doesn't exist or is newer
            if (!file_exists($target_file) || filemtime($source_file) > filemtime($target_file)) {
                if (copy($source_file, $target_file)) {
                    $copied++;
                }
            }
        }
    }
    
    // Remove duplicates
    $source_locales = array_unique($source_locales);
    
    // PART 2: Delete files from target that don't exist in source
    $target_files = glob($target_dir . '/LayerSlider-*.{mo,po}', GLOB_BRACE);
    
    // Protected locales (never delete these - they're from the plugin itself)
    $protected_locales = ['en_US', 'fr_FR', 'hu_HU', 'uk'];
    
    if ($target_files) {
        foreach ($target_files as $target_file) {
            $filename = basename($target_file);
            
            // Extract locale from filename
            preg_match('/LayerSlider-([^\.]+)\./', $filename, $matches);
            if (!isset($matches[1])) {
                continue;
            }
            
            $locale = $matches[1];
            
            // Skip protected locales
            if (in_array($locale, $protected_locales)) {
                continue;
            }
            
            // If this locale is NOT in source directory, delete it from target
            if (!in_array($locale, $source_locales)) {
                if (unlink($target_file)) {
                    $deleted++;
                }
            }
        }
    }
    
    return ['copied' => $copied, 'deleted' => $deleted];
}

// 3. Helper function
function child_theme_get_available_languages($locales_dir) {
    $languages = [];
    
    if (!is_dir($locales_dir)) {
        return $languages;
    }
    
    $files = glob($locales_dir . '/LayerSlider-*.mo');
    
    if (!$files) {
        return $languages;
    }
    
    foreach ($files as $file) {
        $filename = basename($file, '.mo');
        $locale = str_replace('LayerSlider-', '', $filename);
        if (!empty($locale)) {
            $languages[] = $locale;
        }
    }
    
    return $languages;
}

// 4. Insert button in dashboard
function child_theme_layerslider_add_sync_button() {
	$screen = get_current_screen();
	if (!$screen || strpos($screen->id, 'layerslider') === false) {
	    return;
	}
	?>
	<script type="text/javascript">
	    jQuery(document).ready(function($) {
	        setTimeout(function() {
	            if ($('.ls-sync-languages-button').length > 0) {
	                return;
	            }
	            
	            var $settingsButton = $('.ls-open-plugin-settings-button');
	            
	            if ($settingsButton.length === 0) {
	                return;
	            }
	            
	            var syncUrl = <?php echo wp_json_encode(add_query_arg('ls_sync', '1', admin_url('admin.php?page=layerslider'))); ?>;
	            
	            var $syncButton = $('<a>', {
	                href: syncUrl,
	                class: 'ls-button ls-sync-languages-button',
	                html: '<?php echo addslashes(lsGetSVGIcon("globe")); ?>'
	            });
	               
	            $settingsButton.before($syncButton);
	            
	        }, 500);
	    });
	</script>
	    
	<style>
	.ls-sync-languages-button:hover {
	    color: #fff;
	    background: #54575f;
	    border-color: #0000;
	    transition: opacity 0.2s;
	}
	</style>
	<?php
}
add_action('admin_footer', 'child_theme_layerslider_add_sync_button');

// 5. MANUAL TRIGGER
function child_theme_layerslider_manual_sync() {
    if (!isset($_GET['ls_sync']) || $_GET['ls_sync'] != '1') {
        return;
    }
    
    if (!current_user_can('manage_options')) {
        wp_die('No permission');
    }
    
    $success = child_theme_patch_layerslider_template();
    
    $redirect_url = admin_url('admin.php?page=layerslider');
    
    if ($success !== false) {
        $redirect_url = wp_json_encode(add_query_arg('ls_synced', '1', $redirect_url));
    } else {
        $redirect_url = wp_json_encode(add_query_arg('ls_sync_failed', '1', $redirect_url));
    }
    
    wp_redirect($redirect_url);
    exit;
}
add_action('admin_init', 'child_theme_layerslider_manual_sync', 1);

// 6. AUTO-PATCH after plugin update
function child_theme_layerslider_after_update($upgrader_object, $options) {
    if ($options['action'] !== 'update' || $options['type'] !== 'plugin') {
        return;
    }
    
    if (!isset($options['plugins'])) {
        return;
    }
    
    foreach ($options['plugins'] as $plugin) {
        if (strpos($plugin, 'layerslider') !== false || strpos($plugin, 'LayerSlider') !== false) {
            // Run patch automatically after LayerSlider update
            child_theme_patch_layerslider_template();
            break;
        }
    }
}
add_action('upgrader_process_complete', 'child_theme_layerslider_after_update', 10, 2);

here we go – Edit: i think this is the better way to do it :
https://kriesi.at/support/topic/layerslider-translation-into-german-does-not-work/#post-1493597
________________________
(just for standalone plugin – not for the included layerslider)

/**
 * LayerSlider: Auto-Patch for Select Option of lang files
 */

// 1. Daily auto-patch
function child_theme_layerslider_auto_patch() {
    if (!defined('LS_ROOT_PATH')) {
        return;
    }
    
    // Check only once a day
    $last_check = get_option('layerslider_patch_last_check', 0);
    if (time() - $last_check < DAY_IN_SECONDS) {
        return;
    }
    
    child_theme_patch_layerslider_template();
    update_option('layerslider_patch_last_check', time());
}
add_action('admin_init', 'child_theme_layerslider_auto_patch', 999);

// 2. Patch-Function
function child_theme_patch_layerslider_template() {
    $template_file = LS_ROOT_PATH . '/templates/tmpl-plugin-settings.php';
    $locales_dir = LS_ROOT_PATH . '/locales';
    
    if (!file_exists($template_file) || !is_dir($locales_dir)) {
        return false;
    }
    
    // Find available languages
    $available_languages = child_theme_get_available_languages($locales_dir);
    
    if (empty($available_languages)) {
        return false;
    }
    
    $content = file_get_contents($template_file);
    
    // language names
    $language_names = [
        'de_DE' => 'Deutsch',
        'de_DE_formal' => 'Deutsch (Sie)',
        'de_CH' => 'Deutsch (Schweiz)',
        'de_CH_informal' => 'Deutsch (Schweiz, Du)',
        'de_AT' => 'Deutsch (Österreich)',
        // add lang names needed for your uploaded lang files
    ];
    
    // protected default languages 
    $protected_languages = ['auto', 'en_US', 'fr_FR', 'hu_HU', 'uk'];
    
    $modified = false;
    
    // PART 1: Adding missing languages
    $new_options = '';
    foreach ($available_languages as $locale) {
        if (strpos($content, 'value="' . $locale . '"') !== false) {
            continue;
        }
        
        $language_name = isset($language_names[$locale]) ? $language_names[$locale] : $locale;
        $new_options .= "\n\t\t\t\t\t\t<option value=\"" . $locale . "\" <?php echo ( \$custom_locale === '" . $locale . "' ) ? 'selected' : ''?>>" . $language_name . "</option>";
        $modified = true;
    }
    
    if (!empty($new_options)) {
        $search = '<option value="auto" <?php echo ( $custom_locale === \'auto\' ) ? \'selected\' : \'\'?>><?php _e(\'Site default\', \'LayerSlider\') ?></option>';
        $replace = $search . $new_options;
        $content = str_replace($search, $replace, $content);
    }
    
    // PART 2: Removing languages that no longer exist
    foreach ($language_names as $locale => $name) {
        if (in_array($locale, $protected_languages)) {
            continue;
        }
        
        if (strpos($content, 'value="' . $locale . '"') !== false && !in_array($locale, $available_languages)) {
            $pattern = '/\s*<option value="' . preg_quote($locale, '/') . '"[^>]*>.*?<\/option>/';
            $new_content = preg_replace($pattern, '', $content);
            
            if ($new_content !== $content) {
                $content = $new_content;
                $modified = true;
            }
        }
    }
    
    if (!$modified) {
        return true;
    }
    
    // Back up and save
    file_put_contents($template_file . '.backup-' . date('Y-m-d-His'), file_get_contents($template_file));
    file_put_contents($template_file, $content);
    
    return true;
}

// 3. helper function
function child_theme_get_available_languages($locales_dir) {
    $languages = [];
    $files = glob($locales_dir . '/LayerSlider-*.mo');

    if (!$files) {
        return $languages;
    }

    foreach ($files as $file) {
        $filename = basename($file, '.mo');
        $locale = str_replace('LayerSlider-', '', $filename);
        if (!empty($locale)) {
            $languages[] = $locale;
        }
    }   
    return $languages;
}

// 4. Automatically patch after plugin update
function child_theme_layerslider_after_update($upgrader_object, $options) {
    if ($options['action'] !== 'update' || $options['type'] !== 'plugin') {
        return;
    }
    
    if (!isset($options['plugins'])) {
        return;
    }
    
    foreach ($options['plugins'] as $plugin) {
        if (strpos($plugin, 'layerslider') !== false || strpos($plugin, 'LayerSlider') !== false) {
            delete_option('layerslider_patch_last_check');
            child_theme_patch_layerslider_template();
            break;
        }
    }
}
add_action('upgrader_process_complete', 'child_theme_layerslider_after_update', 10, 2);

/**
 * END of LayerSlider: Auto-Patch for Select Option of lang files
 */

Summary of the final solution:
✅ Upload language files to /LayerSlider/assets/locales/
✅ Automatic patch after 24 hours
✅ Automatic patch after plugin updates
✅ when needed: delete_option(‘layerslider_patch_last_check’); – for immediate patch

these snippets will inspect each day – if there are additional lang files for LayerSlider

PS: You can force the patcher by temporarily inserting the following to your child-theme functions.php: delete_option('layerslider_patch_last_check');
after that goto Layerslider Dashboard and : Plugin Updates – Re-Check

i have this stand alone Version too – because i do have some Licenses for Layerslider.
so this seems to be very similar to Herb. I decided to completely remove theme plugin files ( and keep slides ) option.

but – i do not have a proper child-theme solution for that now – maybe i find a way to do that.…

may i ask you what is behind your “avia_gallery_image_order” – because this seems to be your custom function name – and not the filter that is used by enfold. So could you give more info about that function?

is it caused by board soft that there is a usage of an entity in your link notation?
(because you are not using the code tag to post that, i can not say if it is the reason for it.)

the quotes you set are all straight double quotes :

<link rel="icon" type="image/x-icon" href="https://mysite.com/favicon.ico">
<link rel="shortcut icon" type="image/x-icon" href="https://mysite.com/favicon.ico">

and try both entries via wp_head

well – for the size i see in your merged styles :

#top #wrap_all .av-inherit-size .av-special-heading-tag {
  font-size: 1em;
}

because it is the merged version i do not see – if it is a quick css made rule.

f.e. for the heading “NOTRE ENGAGEMENT” inside color-section : #engagement
these rulesets are made inline ( inside the element options ) ( they are listed in a post-….css file )

.avia-section.av-2ah6ew-59724389008986c8623645d2779db077 {
  background-color: #0984a9;
  background-image: unset;
}

#top #wrap_all .av-special-heading.av-ma6kesg8-158f508a9a89994cebab9c80a4c731f0 .av-special-heading-tag {
  font-size: 40px;
}

for the heading “ACTUALITÉ” inside color-section : #actualite this is not done.
so the standard property is used:

.main_color {
  background-color: var(--enfold-main-color-bg);
}

and this is for your page #fff

what ismael is trying to show you is – if you inspect the demo page with dev Tools you see the place to download the woff2 :

but allthough it is listed there the link does not exist:
https://kriesi.at/themes/enfold-law/wp-content/uploads/sites/78/avia_fonts/justice/justice.woff2

As far as i can see : https://www.microsoft.com/en-us/download/details.aspx?id=106087
You can download it from Microsoft – but the included Eula Text is not clear enought if a web-font usage is allowed.

If you own that font – maybe you should be clear what you like to use as font-weight. Even the normal Aptos got a lot of different font-weights (regular, light, semibold, bold, extrabold, black). My recommendation is to use a selection only on performance reasons – f.e. (light, regular, bold)

To have a better modern browser support – take the ttf files and convert them to woff2. (f.e. on https://transfonter.org/)
Put all font-weights (ttf and woff2) in a folder f.e. “Aptos” – and zip that folder for uploading it to the enfold font-manager.
After that – you can choose that font at the end of the drop-downlist for Body font and headings.

try a combination of both filters:

function avf_masonry_entry_content_mod($content, $entry, $config) {
    // Remove all br tags within <ul>...</ul> blocks
    $content = preg_replace_callback('/<ul[^>]*>.*?<\/ul>/is', function($match) {
        return str_replace(['<br>', '<br/>', '<br />'], '', $match[0]);
    }, $content);
    
    // Reduce duplicate/multiple br tags outside of ul tags to a single one
    $content = preg_replace('/(<br\s*\/?>\s*){2,}/i', '<br>', $content);
    
    return $content;
}
add_filter('avf_masonry_entry_content', 'avf_masonry_entry_content_mod', 10, 3);

function my_avf_masonry_loop_entry_content($loop_excerpt, $entry) {
  $loop_excerpt = strip_tags( ($entry->post_excerpt) , '<br><ul><li><strong>'  );
  return $loop_excerpt;
}
add_filter('avf_masonry_loop_entry_content', 'my_avf_masonry_loop_entry_content', 10, 2);

with these snippet you can now insert to excerpt input field:

<strong>Validation & Calibration</strong><br>
<ul>
  <li>Supply and exhaust air volumes</li>
  <li>Room pressure differential</li>
  <li>Pressure gauges and monitors</li>
  <li>Air changes per hour</li>
  <li>Incubators and scales</li>
  <li>Refrigerators and freezers</li>
</ul>

btw. with your semi-transparent flacon at the bottom – maybe it is nice to have the burger overlay semi-transparent.

.html_av-overlay-side #top .av-burger-overlay-scroll {
  background-color: rgba(255,255,255,0.7);
  backdrop-filter: blur(10px)
}

#av-burger-menu-ul .only_mobile img {
  filter: drop-shadow(1px 1px 2px #aaa)
}