Thread:BunsenH/@comment-36960110-20190126023118/@comment-24577221-20190127192046

I figured it out. (For future reference to self: the image is at "File:Community-header-background".)  You may need to refresh your browser (CTRL-F5 in many browsers) to clear the old image out of the cache, or reboot the browser, or wait a few days, for the "new" image to replace the previous one.