We like to ask anyone who sees clones of their own products -or- who does clones of their own products themselves to identify those and mark them to show which product is derived from which other in time.
A clone is e.g. a theme which is based on an already existing theme, so it shares many of its visuals but is changed in colorization, light or dark, or using a different wallpaper.
The mechanism to do so is on every product page, as can be seen very well done by creator @zayronXIO :
If you have any questions how to do this, please post here.
Otherwise we will also start looking out for obvious clones and ping their creators to help sorting them.