Luca Visual FX Spectrum is a bundle of 2 very customizable generators designed to create stylized light and color effects. Light Effect Generator can be used either to create unusual backgrounds or subtle overlays. Light Transition Generator allows the user to create freely interpreted quick light and color transitions over a given cut point. You can download a free trial and purchase Spectrum for only $79 introductory pricing (for a limited time).
Spectrum Tutorial in FCP X
Spectrum Tutorial in Premiere Pro