I change the theme of nktmemo.
now, it is “Parament”.
by the way, I did not know that it need to pay extra charge to customize the design of my blog.
I don’t like previous theme, “Twenty Ten”(?), because I don’t like the style of <pre> tag.
so, I changed the theme which have the style of <pre> tag I like.
I like this theme.
oh, I write this article on Emacs.