[ excerpt with modifications from developer's web site ] Marbles tries to frame already existing items from different iconsets to provide a consistent style for your desktop. Except the marble design and a few newly created icons all pictures used are other artists' stuff. This includes "art reuse" (as in "code reuse") of crystal icons, slick icons, iKons, hicolor, Acqua and different other ones found on kde-look. Thus the copyright/copyleft restrictions of the original artists still apply. I deeply hope everybody agrees with my attempt to unify the icon look for the rest of us who don't have the time and skills to create their own complete, originally, ground-breaking innovative theme.