Any image can link to an HTML popup window. This feature can be disabled in the XML configuration file. Popups are auto-centered on the user's screen. 100% of the Flash 2004 Pro. source code is included upon purchase, including the .fla file and all Actionscript 2.0 class files. All options are externally configurable in an XML file, which can be easily edited using any standard text editor, like Windows Notepad or TextPad. Many interface elements can be edited using the XML preferences file, including several tooltip options and popup window options. view Interface text is editable in the XML file, as well as font sizes and colors. Multiple transition effects are possible by simply changing an option in the XML file. Transition effects include "Blinds", "Fade", "Wipe", "Photo", "Zoom", "Squeeze", and "Pixel Dissolve". All sounds are externally configurable in an XML file, using MP3s. Images and image categories are fully configurable in the XML file. Infinitely-many images are possible in each category, and infinitely-many categories are possible. Category list automatically scrolls when many categories are added. Thus, there is no limit to the number of categories that can be added to the gallery.