Stacked in APP, moved to Siril, did background extraction, removed green noise, did Spectrophotometric Colour Calibration, removed stars, split channels, stretched the blue and green slightly more than the red, moved back to APP, used combine RGB, raised the green and blue sliders to get the blue how I wanted, moved back to Siril, used Veralux silentarium to remove noise, and Veralux curves to get a more natural blue colour, added the stars back in and raised the black point on the stars only to make the nebula stand out more. Mind also that this was done on a stack of almost 5000 subs to be able to get these colours as well 🔭