// This effect is a homage to the good old Compiz days. However, it is implemented //
// quite differently. While Compiz used a particle system, this effect uses a noise //
// shader. The noise is moved vertically over time and mapped to a configurable color //
// gradient. It is faded to transparency towards the edges of the window. In addition, //
// there are a couple of moving gradients which fade-in or fade-out the fire effect. //
