gecko-trello.js

// Here You can type your custom JavaScript...
jQuery.fn.highlight = function (str, className) {
    var regex = new RegExp(str, "gi");
    return this.each(function () {
        $(this).contents().filter(function() {
            return this.nodeType == 3 && regex.test(this.nodeValue);
        }).replaceWith(function() {
            return (this.nodeValue || "").replace(regex, function(match) {
                return "<span class=\"" + className + "\">" + match + "</span>";
            });
        });
    });
};

$(".list-card-title").highlight("As an", 'highlight');
$(".list-card-title").highlight("As a", 'highlight');
$(".list-card-title").highlight("I want", 'highlight');
$(".list-card-title").highlight("so that", 'highlight');

$( ".list-card-details" ).find( ".card-label-red" ).parent().parent().addClass('defect');