diff --git a/src/i18n/strings/cy.json b/src/i18n/strings/cy.json
index e04d3a3f95..22c6e3f450 100644
--- a/src/i18n/strings/cy.json
+++ b/src/i18n/strings/cy.json
@@ -3,9 +3,41 @@
         "emoji_picker": "Dewisydd Emoji",
         "jump_first_invite": "Symud i'r gwahoddiad cyntaf.",
         "message_composer": "Neges cyfansoddwr",
+        "n_unread_messages": {
+            "zero": "%(count)s neges heb eu darllen",
+            "one": "1 neges heb ei darllen",
+            "two": "%(count)s neges heb eu darllen",
+            "few": "%(count)s neges heb eu darllen",
+            "many": "%(count)s neges heb eu darllen",
+            "other": "%(count)s neges heb eu darllen"
+        },
+        "n_unread_messages_mentions": {
+            "zero": "%(count)s crybwylliadau heb eu darllen",
+            "one": "1 crybwylliad heb ei ddarllen",
+            "two": "%(count)s grybwylliad heb eu darllen",
+            "few": "%(count)s crybwylliad heb eu darllen",
+            "many": "%(count)s crybwylliad heb eu darllen",
+            "other": "%(count)s crybwylliad heb eu darllen"
+        },
         "recent_rooms": "Ystafelloedd diweddar",
         "room_messsage_not_sent": "Agor ystafell %(roomName)s gyda neges heb ei gosod.",
         "room_n_unread_invite": "Agor gwahoddiad i ystafell %(roomName)s.",
+        "room_n_unread_messages": {
+            "zero": "Ystafell agored%(roomName)s gyda %(count)s negeseuon heb eu darllen.",
+            "one": "Ystafell agored %(roomName)s gydag 1 neges heb ei darllen.",
+            "two": "Ystafell agored%(roomName)s gyda %(count)s neges heb eu darllen.",
+            "few": "Ystafell agored%(roomName)s gyda %(count)s neges heb eu darllen.",
+            "many": "Ystafell agored%(roomName)s gyda %(count)s neges heb eu darllen.",
+            "other": "Ystafell agored%(roomName)s gyda %(count)s neges heb eu darllen."
+        },
+        "room_n_unread_messages_mentions": {
+            "zero": "Ystafell agored %(roomName)s gyda %(count)s negeseuon heb eu darllen gan gynnwys crybwylliadau.",
+            "one": "Ystafell agored %(roomName)s gydag 1 crybwylliad heb ei ddarllen.",
+            "two": "Ystafell agored %(roomName)s gyda %(count)s neges heb eu darllen gan gynnwys crybwylliadau.",
+            "few": "Ystafell agored %(roomName)s gyda %(count)s neges heb eu darllen gan gynnwys crybwylliadau.",
+            "many": "Ystafell agored %(roomName)s gyda %(count)s neges heb eu darllen gan gynnwys crybwylliadau.",
+            "other": "Ystafell agored %(roomName)s gyda %(count)s neges heb eu darllen gan gynnwys crybwylliadau."
+        },
         "room_name": "Ystafell %(matere)s",
         "room_status_bar": "Bar statws ystafell",
         "seek_bar_label": "Bar chwilio sain",
@@ -927,8 +959,8 @@
             "title": "Dull Adfer Newydd",
             "warning": "Os na wnaethoch chi osod y dull adfer newydd, mae'n bosibl bod ymosodwr yn ceisio cael mynediad i'ch cyfrif. Newidiwch eich cyfrinair cyfrif a gosodwch ddull adfer newydd ar unwaith yn y Gosodiadau."
         },
-        "pinned_identity_changed": "Mae'n ymddangos bod hunaniaeth %(displayName)s ( <b>%(userId)s</b> ) wedi newid. <a>Dysgu rhagor</a>",
-        "pinned_identity_changed_no_displayname": "Mae'n ymddangos bod hunaniaeth <b>%(userId)s</b> wedi newid. <a>Dysgu rhagor</a>",
+        "pinned_identity_changed": "Cafodd hunaniaeth (<b>%(userId)s</b>) %(displayName)s ei ailosod. <a>Dysgu rhagor</a>",
+        "pinned_identity_changed_no_displayname": "Cafodd hunaniaeth <b>%(userId)s</b> ei ailosod. <a>Dysgu rhagor</a>",
         "recovery_method_removed": {
             "description_1": "Mae'r sesiwn hon wedi canfod bod eich Ymadrodd Diogelwch a'ch allwedd ar gyfer Negeseuon Diogel wedi'u dileu.",
             "description_2": "Os gwnaethoch hyn yn ddamweiniol, gallwch osod Negeseuon Diogel ar y sesiwn hon a fydd yn ail-amgryptio hanes negeseuon y sesiwn hon gyda dull adfer newydd.",
@@ -1039,8 +1071,8 @@
             "waiting_other_user": "Yn aros i %(displayName)s wirio…"
         },
         "verification_requested_toast_title": "Gofynnwyd am ddilysiad",
-        "verified_identity_changed": "Mae hunaniaeth %(displayName)s ( <b>%(userId)s</b> ) a ddilyswyd wedi newid. <a>Dysgu rhagor</a>",
-        "verified_identity_changed_no_displayname": "Mae hunaniaeth ddilysedig <b>%(userId)s</b> wedi newid. <a>Dysgu rhagor</a>",
+        "verified_identity_changed": "Cafodd hunaniaeth (<b>%(userId)s</b>) %(displayName)s ei ailosod. <a>Dysgu rhagor</a>",
+        "verified_identity_changed_no_displayname": "Cafodd hunaniaeth <b>%(userId)s</b> ei ailosod. <a>Dysgu rhagor</a>",
         "verify_toast_description": "Efallai na fydd defnyddwyr eraill yn ymddiried ynddo",
         "verify_toast_title": "Gwiriwch y sesiwn hon",
         "withdraw_verification_action": "Tynnu'r dilysiad yn ôl"
@@ -1618,7 +1650,7 @@
         "mark_all_read": "Marcio'r cyfan wedi'u darllen",
         "mentions_and_keywords": "@crybwylliadau ac allweddeiriau",
         "mentions_and_keywords_description": "Dim ond gyda chyfeiriadau ac allweddeiriau fel y'u gosodwyd yn eich <a>gosodiadau</a> y cewch eich hysbysu",
-        "mentions_keywords": "Crybwyll ac allweddeiriau",
+        "mentions_keywords": "Crybwylliadau ac allweddeiriau",
         "message_didnt_send": "Heb anfon y neges. Cliciwch am wybodaeth.",
         "mute_description": "Fyddwch chi ddim yn cael unrhyw hysbysiadau",
         "mute_room": "Tewi'r ystafell"
@@ -1982,6 +2014,7 @@
     "room_list": {
         "add_room_label": "Ychwanegu ystafell",
         "add_space_label": "Ychwanegu gofod",
+        "appearance": "Gwedd",
         "breadcrumbs_empty": "Dim ystafelloedd yr ymwelwyd â nhw yn ddiweddar",
         "breadcrumbs_label": "Ymwelwyd ag ystafelloedd yn ddiweddar",
         "empty": {
@@ -2024,7 +2057,10 @@
             "more_options": "Rhagor o Ddewisiadau",
             "open_room": "Agor ystafell %(roomName)s"
         },
+        "room_options": "Dewisiadau Ystafelloedd",
+        "secondary_filters": "Hidlyddion eilradd",
         "show_less": "Dangos llai",
+        "show_message_previews": "Dangos rhagolygon negeseuon",
         "show_previews": "Dangos rhagolwg o negeseuon",
         "sort_by": "Trefnu yn ôl",
         "sort_by_activity": "Gweithgaredd",
diff --git a/src/i18n/strings/et.json b/src/i18n/strings/et.json
index 64dcf0b1de..2ec82eeb09 100644
--- a/src/i18n/strings/et.json
+++ b/src/i18n/strings/et.json
@@ -2102,6 +2102,7 @@
     "room_list": {
         "add_room_label": "Lisa jututuba",
         "add_space_label": "Lisa kogukonnakeskus",
+        "appearance": "Välimus",
         "breadcrumbs_empty": "Hiljuti külastatud jututubasid ei leidu",
         "breadcrumbs_label": "Hiljuti külastatud jututoad",
         "empty": {
@@ -2152,7 +2153,10 @@
             "more_options": "Täiendavad seadistused",
             "open_room": "Ava jututuba: %(roomName)s"
         },
+        "room_options": "Jututoa valikud",
+        "secondary_filters": "Teisesed filtrid",
         "show_less": "Näita vähem",
+        "show_message_previews": "Näita sõnumite eelvaateid",
         "show_n_more": {
             "one": "Näita veel %(count)s vestlust",
             "other": "Näita veel %(count)s vestlust"
diff --git a/src/i18n/strings/pl.json b/src/i18n/strings/pl.json
index 3e3b818ba9..1523661880 100644
--- a/src/i18n/strings/pl.json
+++ b/src/i18n/strings/pl.json
@@ -528,6 +528,7 @@
         "message_timestamp_invalid": "Nieprawidłowy znacznik czasu",
         "microphone": "Mikrofon",
         "model": "Model",
+        "moderation_and_safety": "Moderacja i bezpieczeństwo",
         "modern": "Współczesny",
         "mute": "Wycisz",
         "n_members": {
@@ -2117,6 +2118,7 @@
     "room_list": {
         "add_room_label": "Dodaj pokój",
         "add_space_label": "Dodaj przestrzeń",
+        "appearance": "Wygląd",
         "breadcrumbs_empty": "Brak ostatnio odwiedzonych pokojów",
         "breadcrumbs_label": "Ostatnio odwiedzane pokoje",
         "empty": {
@@ -2167,7 +2169,10 @@
             "more_options": "Więcej opcji",
             "open_room": "Pokój otwarty %(roomName)s"
         },
+        "room_options": "Opcje pokoju",
+        "secondary_filters": "Filtry poboczne",
         "show_less": "Pokaż mniej",
+        "show_message_previews": "Pokaż podglądy wiadomości",
         "show_n_more": {
             "one": "Pokaż %(count)s więcej",
             "few": "Pokaż %(count)s więcej",
@@ -2747,6 +2752,14 @@
         "labs_mjolnir": {
             "dialog_title": "<strong>Ustawienia:</strong> Ignorowani użytkownicy"
         },
+        "media_preview": {
+            "hide_avatars": "Ukryj awatary pokoju i zapraszającego",
+            "hide_media": "Zawsze ukrywaj",
+            "media_preview_description": "Ukryte media można zawsze wyświetlić, dotykając ich",
+            "media_preview_label": "Pokaż media na osi czasu",
+            "show_in_private": "W pokojach prywatnych",
+            "show_media": "Zawsze pokazuj"
+        },
         "notifications": {
             "default_setting_description": "To ustawienie zastosuje się do wszystkich Twoich pokoi.",
             "default_setting_section": "Chce otrzymywać powiadomienia (Domyślne ustawienie)",
diff --git a/src/i18n/strings/pt_BR.json b/src/i18n/strings/pt_BR.json
index 1e6b269757..4b757093cc 100644
--- a/src/i18n/strings/pt_BR.json
+++ b/src/i18n/strings/pt_BR.json
@@ -3262,7 +3262,7 @@
     },
     "theme": {
         "light_high_contrast": "Claro (alto contraste)",
-        "match_system": "Sistema de correspondência"
+        "match_system": "Padrão do sistema"
     },
     "thread_view_back_action_label": "Voltar ao tópico",
     "threads": {
diff --git a/src/i18n/strings/sk.json b/src/i18n/strings/sk.json
index 9fe3914b64..7f6a1b7079 100644
--- a/src/i18n/strings/sk.json
+++ b/src/i18n/strings/sk.json
@@ -2132,6 +2132,7 @@
     "room_list": {
         "add_room_label": "Pridať miestnosť",
         "add_space_label": "Pridať priestor",
+        "appearance": "Vzhľad",
         "breadcrumbs_empty": "Žiadne nedávno navštívené miestnosti",
         "breadcrumbs_label": "Nedávno navštívené miestnosti",
         "empty": {
@@ -2184,7 +2185,10 @@
             "more_options": "Viac možností",
             "open_room": "Otvoriť miestnosť %(roomName)s"
         },
+        "room_options": "Možnosti miestnosti",
+        "secondary_filters": "Sekundárne filtre",
         "show_less": "Zobraziť menej",
+        "show_message_previews": "Zobraziť náhľady správ",
         "show_n_more": {
             "one": "Zobraziť %(count)s ďalšiu",
             "few": "Zobraziť %(count)s ďalšie",
diff --git a/src/i18n/strings/sv.json b/src/i18n/strings/sv.json
index a530fa013c..a7e6a8eb24 100644
--- a/src/i18n/strings/sv.json
+++ b/src/i18n/strings/sv.json
@@ -525,6 +525,7 @@
         "message_timestamp_invalid": "Ogiltig tidsstämpel",
         "microphone": "Mikrofon",
         "model": "Modell",
+        "moderation_and_safety": "Moderering och säkerhet",
         "modern": "Modernt",
         "mute": "Tysta",
         "n_members": {
@@ -2100,6 +2101,7 @@
     "room_list": {
         "add_room_label": "Lägg till rum",
         "add_space_label": "Lägg till utrymme",
+        "appearance": "Utseende",
         "breadcrumbs_empty": "Inga nyligen besökta rum",
         "breadcrumbs_label": "Nyligen besökta rum",
         "empty": {
@@ -2150,7 +2152,10 @@
             "more_options": "Fler alternativ",
             "open_room": "Öppet rummet %(roomName)s"
         },
+        "room_options": "Rumsalternativ",
+        "secondary_filters": "Sekundära filter",
         "show_less": "Visa mindre",
+        "show_message_previews": "Visa förhandsgranskningar av meddelanden",
         "show_n_more": {
             "other": "Visa %(count)s till",
             "one": "Visa %(count)s till"
@@ -2729,6 +2734,14 @@
         "labs_mjolnir": {
             "dialog_title": "<strong>Inställningar:</strong> Ignorerade användare"
         },
+        "media_preview": {
+            "hide_avatars": "Dölj avatarer för rum och inbjudare",
+            "hide_media": "Dölj alltid",
+            "media_preview_description": "En dold media kan alltid visas genom att trycka på den",
+            "media_preview_label": "Visa media i tidslinjen",
+            "show_in_private": "I privata rum",
+            "show_media": "Visa alltid"
+        },
         "notifications": {
             "default_setting_description": "Denna inställning kommer att tillämpas som standard för alla dina rum.",
             "default_setting_section": "Jag vill bli meddelad för (Standardinställning)",
diff --git a/src/i18n/strings/uk.json b/src/i18n/strings/uk.json
index ba1de874ef..61f132e257 100644
--- a/src/i18n/strings/uk.json
+++ b/src/i18n/strings/uk.json
@@ -2108,6 +2108,7 @@
     "room_list": {
         "add_room_label": "Додати кімнату",
         "add_space_label": "Додати простір",
+        "appearance": "Вигляд",
         "breadcrumbs_empty": "Немає недавно відвіданих кімнат",
         "breadcrumbs_label": "Недавно відвідані кімнати",
         "empty": {
@@ -2158,7 +2159,10 @@
             "more_options": "Інші опції",
             "open_room": "Відкрити кімнату %(roomName)s"
         },
+        "room_options": "Параметри кімнати",
+        "secondary_filters": "Додаткові фільтри",
         "show_less": "Згорнути",
+        "show_message_previews": "Показати попередній перегляд повідомлень",
         "show_n_more": {
             "other": "Показати ще %(count)s",
             "one": "Показати ще %(count)s"