If you have troubles since the update to WordPress 4.5 please read this post before opening a new thread.
can i adjust the size of the thumbnail at the bottom of the page. (hide sidebar & content)
yes – open up functions.php and search for:
$avia_config['imgSize']['widget'] = array('width'=>48, 'height'=>48 ); // small preview pics eg sidebar news, fullscreen slideshow thumbnails
Then replace 48/48px with any other values. At least regenerate all thumbnails with: http://wordpress.org/extend/plugins/regenerate-thumbnails/
i did so, but even after the regnerate thumbnail there is no change. do i have to adjust the height of the slideshowbar, too?
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