I used the file unchanged but printed the flame with silk red-gold filament: https://smile.amazon.com/dp/B08QN2PCG1/?coliid=I3DK4WXYAUPD89&colid=17THT0FNQ9M3F&psc=1&ref_=lv_ov_lig_dp_it

I illuminated this with a rechargeable bicycle white headlight. This looked like a more natural flame color than the white filament illuminated with a red LED light.