I am using Adaptable theme on Moodle 3.9.
I want to provide our logo as the common / default course image for all our courses on all pages, and not just front page.
To test, I tried the CSS below (given in one of the topics with the same subject line in these forums) to achieve that. However, the image appears for a fraction of a second before reverting to course colors. I cleared my history/ browser cache etc., but still it is the same.