JISキーボードの全角/半角キーをIMEのON/OFF切り替えキーに変換する Karabiner-Elements の設定

karabiner.json

{
  "description": "JISキーボードの全角/半角キーをIMEのON/OFF切り替えキーに変換。",
  "manipulators": [{
          "conditions": [{
              "input_sources": [{
                  "language": "en"
              }],
              "type": "input_source_if"
          }],
          "from": {
              "key_code": "grave_accent_and_tilde"
          },
          "to": [{
              "key_code": "japanese_kana"
          }],
          "type": "basic"
      },
      {
          "conditions": [{
              "input_sources": [{
                  "language": "ja"
              }],
              "type": "input_source_if"
          }],
          "from": {
              "key_code": "grave_accent_and_tilde"
          },
          "to": [{
              "key_code": "japanese_eisuu"
          }],
          "type": "basic"
      }
  ]
}