半角/全角, ひらがな/カタカナ, 変換, and 無変換 committed the reading and did
nothing, like any function key. They now stand for what a Japanese
keyboard means by them: toggling Japanese and English, switching kana
modes, converting (or turning Japanese on), and turning it off; the
Korean keys became a switch of the same shape. The keypad's arrows
and page keys, with NumLock off, fold onto the plain ones as its Enter
and Tab already did.