Launch AutoDev to help inspect the data. Chances are that the image looks terrible, which is - believe it or not - the point. In the presence of problems, AutoDev will show them until they are dealt with. Because StarTools constantly tries to make sense of your data, StarTools is very sensitive to artefacts, meaning anything that is not real celestial detail (a single color bias, stacking artefacts, dust donuts, gradients, terrestrial scenery, etc.). Just 'Keep' the result. StarTools, thanks to Tracking, will allow us to redo the stretch later on.
At this point, things to look out for are;
Make mental notes of any issues you see.
This same popup is shown upon first launch of the module.
A 'Color' button is available, which functions much like the Color button in the Wipe module.
Through the Compose module, StarTools is able to process luminance and color information separately, yet simultaneously.
You can convert everything you see to a format you find convenient. Give it a try!