Several timer options, like color and font style, are configurable using an external XML file. All timers come with a DTD file to validate your XML (can be used with most XML editors, like the very popular XML spy). All applets include 100% of the Flash 2004 Pro. source code, so that even if the configuration option that you need is not available in the XML file, you can always directly edit the Flash source code. All ticker SWF files are very small and fast, in some cases under 5 KB! Most timer applets shown can be configured to use either PC time or Universal time, and some can use either 12- or 24-hour format, too. These options can be set in the XML configuration file.