Since the default jetpack exhaust seemed a little bland, I made it be more like a jet engine exhaust: blue-white at the nozzle, turning to orange at the tip of the flame.
Known issues: occasionally when I warp to a new system, the texture will revert to its original. I’m not sure why this happens, and I’ll keep investigating, but all things considered it’s not exactly game-breaking.
Put it in your MODS folder.
1.0 – Yay!