Hello,
I updated the site with the Opus template to Joomla! 4 and I don't know why the header is not transparent.

In the demo https://demo.joomshaper.com/2018/opus/index.php the header is transparent.

When I download opus_quickstart_j4_v2.0.0.zip, the header is not transparent.

I need advice on how to set a transparent header.
Regards, Milan
