diff --git a/packages/i18n/src/locales/fr.json b/packages/i18n/src/locales/fr.json
index 8ea751d9a85c5..b9a5217c8c620 100644
--- a/packages/i18n/src/locales/fr.json
+++ b/packages/i18n/src/locales/fr.json
@@ -229,7 +229,8 @@
         "label": "Choisir la langue"
       },
       "themeToggle": {
-        "label": "Basculer en mode sombre"
+        "light": "Basculer en mode clair",
+        "dark": "Basculer en mode nuit"
       }
     },
     "metabar": {
diff --git a/packages/i18n/src/locales/ja.json b/packages/i18n/src/locales/ja.json
index 41bf222343b9c..3535141f178bb 100644
--- a/packages/i18n/src/locales/ja.json
+++ b/packages/i18n/src/locales/ja.json
@@ -3,7 +3,7 @@
     "containers": {
       "footer": {
         "links": {
-          "openJSFoundation": "OpenJS財団",
+          "openJSFoundation": "OpenJS Foundation",
           "trademarkPolicy": "商標ポリシー",
           "privacyPolicy": "プライバシーポリシー",
           "versionSupport": "バージョンサポート",
@@ -229,7 +229,8 @@
         "label": "言語を選択"
       },
       "themeToggle": {
-        "label": "ダークモードに切り替え"
+        "light": "ライトモードに切り替える",
+        "dark": "ダークモードに切り替える"
       }
     },
     "metabar": {
diff --git a/packages/i18n/src/locales/ro.json b/packages/i18n/src/locales/ro.json
index 8055de6b9c5e3..c3062a7cddd57 100644
--- a/packages/i18n/src/locales/ro.json
+++ b/packages/i18n/src/locales/ro.json
@@ -229,7 +229,8 @@
         "label": "Alege limba"
       },
       "themeToggle": {
-        "label": "Comută modul întunecat"
+        "light": "Schimbă la modul luminos",
+        "dark": "Schimbă la modul întunecat"
       }
     },
     "metabar": {