Provides 'ggplot2' themes based on the 'M+' fonts. The 'M+' fonts are a font family under a free license. The font family provides multilingual glyphs. The fonts provide 'Kana', over 5,000 'Kanji', Basic Latin, Latin-1 Supplement, Latin Extended-A, and 'IPA' Extensions glyphs. Most of the Greek, Cyrillic, Vietnamese, and extended glyphs and symbols are included too. So the fonts are in conformity with ISO-8859-1, 2, 3, 4, 5, 7, 9, 10, 13, 14, 15, 16, Windows-1252, T1, and VISCII encoding. More information about the fonts can be found at < http://mplus-fonts.osdn.jp/about-en.html>.