It is not easy for Korean people to study pharo. Very few people use smalltalk. Of course, it is hard to find Korean language resources.
Recently I went to find the spec framework to study Pharo. Of course I looked at morphic designer in squeak, but I believe in pharo team.
I have translated it with the help of google for those who want to study. I refer to the pillar source of git. I wanted to work with pdf, but I know xetex, but I do not know about pillar and luatex. So I put it on the wiki.