User blog comment:Rupert Giles/Layout Changes: Breakpoints and Typography/@comment-5064943-20150515210708/@comment-14310002-20150516013714

Hey,

What you can do is create a template saying "this page contains graphic content which only mature users should access", or something along those lines. Add it to every page which you believe is graphic, and that can be the warning. I think there is a more extensive way of doing this as well, but I don't know the coding.