A great number of YouTube videos on StarTools are available from various users.
StarTools does more than just help you make "pretty pictures".
StarTools is famous for its Color Constancy color rendering.
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!