Tomato Firmware is a replacement firmware for the Linksys WRT54G and Buffalo WHR-G54 series of wireless routers based on a Linux core. The firmware is developed by Jonathan Zarate and is based off othe GPL sourcecode released by Linksys and includes proprietary modules developed by Broadcom. It features a rich graphical user interface that relies heavily on AJAX and a realtime SVG-based graphical bandwidth monitor. The firmware exposes access to many hardware features and tweaks including the ability to increase the transmit power of the wireless antenna.