Tried this in both opera, opera incognito, and chromium (which I never use (maybe ever on this computer)). I doubt this is limited to spring security, but I'm not certain how spring generates its documentation.
Comment From: jzheaux
Thanks, @xenoterracide, I wonder if this is due to the images using a transparent instead of white background. I'll take a look.
Comment From: jzheaux
Related https://github.com/spring-io/antora-ui-spring/issues/229