diff --git a/src/i18n/locales/cs-CZ.json b/src/i18n/locales/cs-CZ.json
index d1ba92324..9e9e3eb2e 100644
--- a/src/i18n/locales/cs-CZ.json
+++ b/src/i18n/locales/cs-CZ.json
@@ -54,7 +54,9 @@
         "info-text": "The video will not be processed but all cutting information will be stored in Opencast. You can continue your edit later.",
         "success-text": "Changes saved successfully! You can now close the editor or continue working.",
         "success-tooltip-aria": "Saved successfully",
-        "saveArea-tooltip": "Save Area"
+        "saveArea-tooltip": "Save Area",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Discard changes",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Slovenian",
-            "LANGUAGES-PORTUGUESE": "Portuguese",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Romansh",
             "LANGUAGES-ARABIC": "Arabic",
             "LANGUAGES-POLISH": "Polish",
@@ -202,7 +204,7 @@
         "goBack-button": "No, take me back"
     },
     "trackSelection": {
-        "description": "Select or deselect which tracks are used for processing and publication.",
+        "title": "Select track(s) for processing",
         "trackInactive": "inactive",
         "deleteTrackText": "Delete Track",
         "restoreTrackText": "Restore Track",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Timeline overview"
     },
     "keyboardControls": {
-        "header": "Keyboard Controls",
+        "header": "Shortcuts",
         "defaultGroupName": "General",
         "missingLabel": "Unknown",
         "groupVideoPlayer": "Video Player",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Appearance",
-        "selectThemesLabel": "Appearances",
-        "darkmode": "Dark mode",
-        "lightmode": "Light mode",
-        "system": "System design",
-        "high-contrast-dark": "High contrast (Dark mode)",
-        "high-contrast-light": "High contrast (Light mode)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Language"
     }
 }
diff --git a/src/i18n/locales/de-DE.json b/src/i18n/locales/de-DE.json
index e5be67f4a..d43d94192 100644
--- a/src/i18n/locales/de-DE.json
+++ b/src/i18n/locales/de-DE.json
@@ -54,7 +54,9 @@
         "info-text": "Das Video wird nicht verarbeitet, aber alle Schnittinformationen werden in Opencast gespeichert. Sie können Ihre Bearbeitung später fortsetzen.",
         "success-text": "Änderungen erfolgreich gespeichert! Sie können den Editor nun schließen oder weiter arbeiten.",
         "success-tooltip-aria": "Erfolgreich gespeichert",
-        "saveArea-tooltip": "Speicherbereich"
+        "saveArea-tooltip": "Speicherbereich",
+        "confirm-success": "Okay",
+        "cancel-save": "Nicht speichern"
     },
     "discard": {
         "headline-text": "Änderungen verwerfen",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Slowenisch",
-            "LANGUAGES-PORTUGUESE": "Portugiesisch",
+            "LANGUAGES-PORTUGESE": "Portugiesisch",
             "LANGUAGES-ROMANSH": "Rätoromanisch",
             "LANGUAGES-ARABIC": "Arabisch",
             "LANGUAGES-POLISH": "Polnisch",
@@ -202,7 +204,7 @@
         "goBack-button": "Nein, zurück"
     },
     "trackSelection": {
-        "description": "Wählen oder deaktivieren Sie die Spuren für die Verarbeitung und Veröffentlichung.",
+        "title": "Spur(en) für die Verarbeitung auswählen",
         "trackInactive": "inaktiv",
         "deleteTrackText": "Spur löschen",
         "restoreTrackText": "Spur wiederherstellen",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Zeitleiste-Übersicht"
     },
     "keyboardControls": {
-        "header": "Tastatursteuerung",
+        "header": "Tastenkürzel",
         "defaultGroupName": "Allgemein",
         "missingLabel": "Unbekannt",
         "groupVideoPlayer": "Videoplayer",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Erscheinungsbild",
-        "selectThemesLabel": "Darstellung",
-        "darkmode": "Dunkles Design",
-        "lightmode": "Helles Design",
-        "system": "System Design",
-        "high-contrast-dark": "Hoher Kontrast (Dunkles Design)",
-        "high-contrast-light": "Hoher Kontrast (Helles Design)"
+        "dark": "Dunkel",
+        "light": "Hell",
+        "auto": "Auto",
+        "dark-high-contrast": "Dunkel (hoher Kontrast)",
+        "light-high-contrast": "Hell (hoher Kontrast)"
+    },
+    "language": {
+        "language": "Sprache"
     }
 }
diff --git a/src/i18n/locales/el-GR.json b/src/i18n/locales/el-GR.json
index b34b7658a..80dbcb062 100644
--- a/src/i18n/locales/el-GR.json
+++ b/src/i18n/locales/el-GR.json
@@ -54,7 +54,9 @@
         "info-text": "Το βίντεο δεν θα επεξεργαστεί, αλλά όλες οι πληροφορίες κοπής θα αποθηκευτούν στο Opencast. Μπορείτε να συνεχίσετε την επεξεργασία σας αργότερα.",
         "success-text": "Οι αλλαγές αποθηκεύτηκαν επιτυχώς! Τώρα μπορείτε να κλείσετε τον επεξεργαστή βίντεο ή να συνεχίσετε να εργάζεστε στο βίντεο.",
         "success-tooltip-aria": "Αποθηκεύτηκε επιτυχώς",
-        "saveArea-tooltip": "Αποθήκευση Περιοχής"
+        "saveArea-tooltip": "Αποθήκευση Περιοχής",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Απόρριψη αλλαγών",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Σλοβενικά",
-            "LANGUAGES-PORTUGUESE": "Πορτογαλικά",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Ρωμανικά",
             "LANGUAGES-ARABIC": "Αραβικά",
             "LANGUAGES-POLISH": "Πολωνικά",
@@ -202,7 +204,7 @@
         "goBack-button": "Όχι, πήγαινέ με πίσω"
     },
     "trackSelection": {
-        "description": "Επιλέξτε ή αποεπιλέξτε ποια κομμάτια χρησιμοποιούνται για την επεξεργασία και τη δημοσίευση.",
+        "title": "Select track(s) for processing",
         "trackInactive": "ανενεργό",
         "deleteTrackText": "Διαγραφή Κομματιού",
         "restoreTrackText": "Επαναφορά Κομματιού",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Επισκόπηση χρονολογίου"
     },
     "keyboardControls": {
-        "header": "Έλεγχοι Πληκτρολογίου",
+        "header": "Shortcuts",
         "defaultGroupName": "Γενικά",
         "missingLabel": "Άγνωστο",
         "groupVideoPlayer": "Αναπαραγωγή Βίντεο",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Εμφάνιση",
-        "selectThemesLabel": "Εμφανίσεις",
-        "darkmode": "Σκοτεινή λειτουργία",
-        "lightmode": "Φωτεινή λειτουργία",
-        "system": "Σχεδιασμός συστήματος",
-        "high-contrast-dark": "Υψηλή αντίθεση (Λειτουργία μαύρου)",
-        "high-contrast-light": "Υψηλή αντίθεση (λειτουργία άσπρου)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Γλώσσα"
     }
 }
diff --git a/src/i18n/locales/es-ES.json b/src/i18n/locales/es-ES.json
index b8000820e..207041843 100644
--- a/src/i18n/locales/es-ES.json
+++ b/src/i18n/locales/es-ES.json
@@ -54,7 +54,9 @@
         "info-text": "El vídeo no será procesado, pero toda la información de corte será almacenada en Opencast. Puede continuar su edición más tarde.",
         "success-text": "¡Cambios guardados con éxito! Ahora puede cerrar el editor o continuar trabajando.",
         "success-tooltip-aria": "Guardado con éxito",
-        "saveArea-tooltip": "Guardar área"
+        "saveArea-tooltip": "Guardar área",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Descartar cambios",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Esloveno",
-            "LANGUAGES-PORTUGUESE": "Portugués",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Rumano",
             "LANGUAGES-ARABIC": "Árabe",
             "LANGUAGES-POLISH": "Polaco",
@@ -202,7 +204,7 @@
         "goBack-button": "¡De ninguna manera! Volver atrás"
     },
     "trackSelection": {
-        "description": "Seleccione qué pistas serán usadas para el procesamiento y publicación.",
+        "title": "Select track(s) for processing",
         "trackInactive": "inactivo",
         "deleteTrackText": "Eliminar pista",
         "restoreTrackText": "Restaurar pista",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Previsualización de la línea de tiempo"
     },
     "keyboardControls": {
-        "header": "Controles del teclado",
+        "header": "Shortcuts",
         "defaultGroupName": "General",
         "missingLabel": "Desconocido",
         "groupVideoPlayer": "Reproductor de vídeo",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Apariencia",
-        "selectThemesLabel": "Apariencias",
-        "darkmode": "Modo oscuro",
-        "lightmode": "Modo claro",
-        "system": "Diseño del sistema",
-        "high-contrast-dark": "Alto contraste (modo oscuro)",
-        "high-contrast-light": "Alto contraste (modo claro)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Idioma"
     }
 }
diff --git a/src/i18n/locales/fr-FR.json b/src/i18n/locales/fr-FR.json
index eaf7789c3..cdc363eb3 100644
--- a/src/i18n/locales/fr-FR.json
+++ b/src/i18n/locales/fr-FR.json
@@ -54,7 +54,9 @@
         "info-text": "La vidéo ne sera pas traitée mais toutes les informations de coupe seront stockées dans Opencast. Vous pouvez continuer votre modification plus tard.",
         "success-text": "Changes saved successfully! You can now close the editor or continue working.",
         "success-tooltip-aria": "Sauvegarde réussie",
-        "saveArea-tooltip": "Enregistrer la zone"
+        "saveArea-tooltip": "Enregistrer la zone",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Ignorer les modifications",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Slovaque",
-            "LANGUAGES-PORTUGUESE": "Portuguese",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Romanche",
             "LANGUAGES-ARABIC": "Arabe",
             "LANGUAGES-POLISH": "Polonais",
@@ -202,7 +204,7 @@
         "goBack-button": "Non, laissez-moi revenir en arrière."
     },
     "trackSelection": {
-        "description": "Sélectionnez ou désélectionnez quelles pistes sont utilisées pour le traitement et la publication.",
+        "title": "Select track(s) for processing",
         "trackInactive": "inactif",
         "deleteTrackText": "Supprimer la piste",
         "restoreTrackText": "Restaurer la piste",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Timeline overview"
     },
     "keyboardControls": {
-        "header": "Controles clavier",
+        "header": "Shortcuts",
         "defaultGroupName": "Général",
         "missingLabel": "Inconnu",
         "groupVideoPlayer": "Video Player",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Appearance",
-        "selectThemesLabel": "Appearances",
-        "darkmode": "Dark mode",
-        "lightmode": "Light mode",
-        "system": "System design",
-        "high-contrast-dark": "High contrast (Dark mode)",
-        "high-contrast-light": "High contrast (Light mode)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Langue"
     }
 }
diff --git a/src/i18n/locales/nl-NL.json b/src/i18n/locales/nl-NL.json
index d57dcb9c2..92531b53e 100644
--- a/src/i18n/locales/nl-NL.json
+++ b/src/i18n/locales/nl-NL.json
@@ -54,7 +54,9 @@
         "info-text": "De video wordt niet verwerkt, maar alle snijgegevens worden opgeslagen in Opencast. U kunt later doorgaan met uw bewerking.",
         "success-text": "Changes saved successfully! You can now close the editor or continue working.",
         "success-tooltip-aria": "Succesvol opgeslagen",
-        "saveArea-tooltip": "Gebied opslaan"
+        "saveArea-tooltip": "Gebied opslaan",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Annuleren",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Sloveens",
-            "LANGUAGES-PORTUGUESE": "Portuguese",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Reto-Romaans",
             "LANGUAGES-ARABIC": "Arabisch",
             "LANGUAGES-POLISH": "Pools",
@@ -202,7 +204,7 @@
         "goBack-button": "Nee, breng me terug"
     },
     "trackSelection": {
-        "description": "Selecteer of deselecteer welke sporen worden gebruikt voor verwerking en publicatie.",
+        "title": "Select track(s) for processing",
         "trackInactive": "inactief",
         "deleteTrackText": "Verwijder spoor",
         "restoreTrackText": "Herstel spoor",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Timeline overview"
     },
     "keyboardControls": {
-        "header": "Keyboard Controls",
+        "header": "Shortcuts",
         "defaultGroupName": "General",
         "missingLabel": "Unknown",
         "groupVideoPlayer": "Video Player",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Appearance",
-        "selectThemesLabel": "Appearances",
-        "darkmode": "Dark mode",
-        "lightmode": "Light mode",
-        "system": "System design",
-        "high-contrast-dark": "High contrast (Dark mode)",
-        "high-contrast-light": "High contrast (Light mode)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Taal"
     }
 }
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index 63c370773..3848ea9d9 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -54,7 +54,9 @@
         "info-text": "The video will not be processed but all cutting information will be stored in Opencast. You can continue your edit later.",
         "success-text": "Changes saved successfully! You can now close the editor or continue working.",
         "success-tooltip-aria": "Saved successfully",
-        "saveArea-tooltip": "Save Area"
+        "saveArea-tooltip": "Save Area",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "Discard changes",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "Slovenian",
-            "LANGUAGES-PORTUGUESE": "Portuguese",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "Romansh",
             "LANGUAGES-ARABIC": "Arabic",
             "LANGUAGES-POLISH": "Polish",
@@ -202,7 +204,7 @@
         "goBack-button": "No, take me back"
     },
     "trackSelection": {
-        "description": "Select or deselect which tracks are used for processing and publication.",
+        "title": "Select track(s) for processing",
         "trackInactive": "inactive",
         "deleteTrackText": "Delete Track",
         "restoreTrackText": "Restore Track",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Timeline overview"
     },
     "keyboardControls": {
-        "header": "键盘设置",
+        "header": "Shortcuts",
         "defaultGroupName": "General",
         "missingLabel": "Unknown",
         "groupVideoPlayer": "Video Player",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Appearance",
-        "selectThemesLabel": "Appearances",
-        "darkmode": "Dark mode",
-        "lightmode": "Light mode",
-        "system": "System design",
-        "high-contrast-dark": "High contrast (Dark mode)",
-        "high-contrast-light": "High contrast (Light mode)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "Language"
     }
 }
diff --git a/src/i18n/locales/zh-TW.json b/src/i18n/locales/zh-TW.json
index f25181c72..c4109c259 100644
--- a/src/i18n/locales/zh-TW.json
+++ b/src/i18n/locales/zh-TW.json
@@ -54,7 +54,9 @@
         "info-text": "影片不會被處理，但所有裁剪訊息都將存儲在 Opencast 中。 您可以稍後繼續編輯。",
         "success-text": "Changes saved successfully! You can now close the editor or continue working.",
         "success-tooltip-aria": "儲存成功",
-        "saveArea-tooltip": "儲存區域"
+        "saveArea-tooltip": "儲存區域",
+        "confirm-success": "Okay",
+        "cancel-save": "Don't save"
     },
     "discard": {
         "headline-text": "放棄變更",
@@ -121,7 +123,7 @@
         },
         "language": {
             "LANGUAGES-SLOVENIAN": "斯洛文尼亞語",
-            "LANGUAGES-PORTUGUESE": "Portuguese",
+            "LANGUAGES-PORTUGESE": "Portuguese",
             "LANGUAGES-ROMANSH": "羅曼什語",
             "LANGUAGES-ARABIC": "阿拉伯語",
             "LANGUAGES-POLISH": "波蘭語",
@@ -202,7 +204,7 @@
         "goBack-button": "不，回到上一步"
     },
     "trackSelection": {
-        "description": "選擇或取消選擇用於處理和發佈的影音軌道。",
+        "title": "Select track(s) for processing",
         "trackInactive": "不活動的",
         "deleteTrackText": "刪除影音軌道",
         "restoreTrackText": "還原影音軌道",
@@ -244,7 +246,7 @@
         "overviewTimelineTooltip": "Timeline overview"
     },
     "keyboardControls": {
-        "header": "鍵盤控制",
+        "header": "Shortcuts",
         "defaultGroupName": "一般",
         "missingLabel": "未知",
         "groupVideoPlayer": "Video Player",
@@ -261,11 +263,13 @@
     },
     "theme": {
         "appearance": "Appearance",
-        "selectThemesLabel": "Appearances",
-        "darkmode": "Dark mode",
-        "lightmode": "Light mode",
-        "system": "System design",
-        "high-contrast-dark": "High contrast (Dark mode)",
-        "high-contrast-light": "High contrast (Light mode)"
+        "dark": "Dark",
+        "light": "Light",
+        "auto": "Auto",
+        "dark-high-contrast": "Dark (High contrast)",
+        "light-high-contrast": "Light (High contrast)"
+    },
+    "language": {
+        "language": "語言"
     }
 }