delicious_rainbow.user.js

// ==UserScript==
// @name delicious rainbow
// @namespace http://d.hatena.ne.jp/youpy/
// @include http://delicious.com/*
// @require http://gist.github.com/raw/3242/1a7950e033a207efcfc233ae8d9939b676bdbf46
// ==/UserScript==

function rainbow(doc) {
	$X('//div[starts-with(@class, "savers")]', doc).forEach(function(e) {
		var url = e.childNodes[1].href;
		var color = url.match(/url\/(.{6})/)[1];
		e.style.borderRight = '7px solid #' + color;
	});
}

function addDocumentFilter() {
	window.AutoPagerize.addDocumentFilter(rainbow);
}

rainbow(document);

if(window.AutoPagerize) {
	addDocumentFilter();
} else {
	window.addEventListener('GM_AutoPagerizeLoaded', addDocumentFilter, false);
}