{"ponybooru":{"link":"^(?:ponybooru\\.org)\\/(?:images\\/)?(\\d__)(?:\\?)?.*","url":"https://ponybooru.org/api/v1/json/images/$1","res":":\n$ = JSON.parse($._).image\nvar r = $.representations\nreturn [[\n $.format=='gif'||$.width<1200 && $.height<1200 ? r.full : ['#' __ r.full, r.large],\n ['['__$.created_at__']', $.name, $.description, $.tags, $.source_url].filter(Boolean).join(' | ')\n]]","img":"^cdn\\.ponybooru\\.org\\/img\\/(?:view\\/)?20\\d\\d\\/1?\\d\\/[123]?\\d\\/(\\d+)\\..*"}}
(copy-paste that into the “from text” field in imagus sieve import)
PS: In case you’re wondering “wtf is an imagus”—it’s a browser extension that lets you zoom onto images you see on the internet without much effort. It usually saves you a few clicks.