A brief tutorial on using Siril via the Sirilic front-end.
However the Synth module can physically model and emulate most real optical systems and configurations to obtain a desired result.
You are forgiven if, at first glance, you get the impression StarTools offers only the basics.
The Color module is very powerful - offering capabilities surpassing most other software - yet it is simple to use.
The two aspects - colour and luminance - of your image are neatly separated thanks to StarTools' signal evolution Tracking engine.
You can convert everything you see to a format you find convenient. Give it a try!