I see that Rietveld is only a part of Mondrian or at least described as "not the full Mondrian tool". Googlers, what are the differences between the two. Wond

I see that Rietveld is only a part of Mondrian or at least described as "not the full Mondrian tool". Googlers, what are the differences between the two. Wonder why the full Mondrian tool couldn't be released.