Comment by efreak

Add a rule to your adblocker for the image, then. The main site appears to have it at `anubis.techaro.lol/.within.website/x/cmd/anubis/static/img/happy.webp?cacheBuster=v1.21.3-43-gb0fa256`, so a rule for `||*/.within.website/x/cmd/anubis/static/img/$image` ought to work for ublock origin (purely a guess regarding wildcards for domain, I've never set a rule without a domain before)