URL is joomla4.cal-sailing.org
Login using credentials I've supplied on other reports. On the home page, edit the embedded article.
You'll see the editor background as #6d9cca instead of white, which it was on the previous template.
If I put an editor.css file in the template/css directory with these lines, it fixes the problem
background: #FFFFFF !important;
color: #000000 !important;