This shows the use of the LanguageFontGroup API to get fonts for a particular language (Japanese used here) for UI body text and heading elements. Note that the API returns specific values for font sub-family attributes (weight, stretch and style) in addition to the font family.
訧焨を餯ダ 拣饵廦え尤 栧穃榞しゃぴゃ 餯ダ ら横襩 ペ覧へ 䨣禚詃ウォ榯 稣じ韩むにょ ぬ檧 みよ栣 グェ来げ毚廤 しゅ择れ苩㫣 スィ栩, 婧スぴゅ し짦さシャず 䥚にゃ槚じゅ谦 饟襧ッラ゜け 餯ダ 饟襧ッ 䩚埨 嫣婧スぴゅ椩 綩觚奤珣う,