(function() {
    "use strict";
    var chat = document.getElementById('chat');
    var counter = 0;
    var multiplier = 10;
    function rainbowBitches(node) {
        if (node.classList && node.classList.contains('message') && !node.classList.contains('pending')) {
            var content = node.querySelectorAll('.content');
            [].forEach.call(content, function(cnode) {
                cnode.style.color = 'hsl(' + counter + ',  100%,50%)';
                counter += multiplier;
            });
        }
    }
    [].forEach.call(chat.querySelectorAll('.user-container .message'), rainbowBitches);
    new MutationObserver(function(records) {
        records.forEach(function(record) {
            [].forEach.call(record.addedNodes, rainbowBitches);
        });
    }).observe(chat, {
        childList: true,
        subtree: true
    });
}());