It adds a block, Sword Pedestal. The way the sword is rendered is highly customizable. To put/take the sword into/out of the pedestal, simply right-click with it on the block. If you want to customize, right-click the block while sneaking. Mod supports HD Texture Packs as long as OptiFine is installed.
Customization Tips (Pedestal GUI):
Press the icon of the pedestal, to change it.
Color of the Light Beam is changed using RGBA sliders. They are not 100% accurate but I highly doubt somepony will ever complain about them.