A new PixInsight processing tutorial has now been added. This is a remake of an old one, based on using narrowband data to produce Bicolour Palette images, mainly centered around Hydrogen-Alpha and Oxygen-III data. The tutorial also covers how to generally use the PixelMath process to blend data from more narrowband images, such as Sulphur-II, Hydrogen-Beta and Nitrogen-II.
A total of three Bicolour Palette combination methods are discussed. These are LRGB-style, synthetic green based on Steve Cannistra's method and blended colour channels. If you would like to read this tutorial, please follow this link directly to it.