Tracking in StarTools makes sure that every module and algorithm can trace back how a pixel was modified at any point in time. It is the Tracking engine's job to allow modules and algorithms "travel in time" to consult data and even change data (changing the past), and then forward-propagate the changes to the present.
The latter sees the Tracking module re-apply every operation made since that point in time, however with the changed data as a starting point; changing the past for a better future. This is effectively signal processing in three dimensions; X, Y and time (X, Y, t).
StarTools does more than just help you make "pretty pictures".
StarTools' AutoDev module uses image analysis to find the optimum custom curve for the characteristics of the data.
In StarTools, this important distinction is abstracted away, thanks to the signal evolution Tracking engine.
Stacking artefacts are the most common dark anomalies located at the edges of your image.
These type of dark anomalies are taken care of by masking them out so that Wipe will not sample their pixels.
You can convert everything you see to a format you find convenient. Give it a try!