OK, Pascal, I'll see you and raise you a couple of kilowatts (-:
If you like it, help yourself under the terms of the Creative Commons Attribution-Sharealike licence. XCFs available on request. It’s basically just ten minutes spent with The GIMP’s GlowingHot plugin plus a brief frenzy of layer-copying.
If you view just the image in a tab with a recent Firefox, I note, the tab’s icon is animated. I’m not sure whether to be overwhelmed or chagrined at that. (-: