The lava now has fire particles, which make the effect much better. Now to animate the lava texture.
Fixed an old bug where the Gravisphere beam went to the center of the screen instead of the held object. This had long been a problem that needed to be fixed, or the beam would have to be cut. It was previously beyond my programming ability, but now an exploration of the beam plugin documentation revealed the answer. Another great feeling of overcoming an obstacle that had long been too hard.