feat(chat): emoji picker as an in-pane overlay with keyword search

Reworked the emoji picker from a floating popup (which overlapped the message
area) into an overlay that takes over the conversation-list pane while open:
a Cancel button + a keyword search box at the top, then a responsive grid below
that wraps to the pane width.

Each emoji now carries search keywords (grin/heart/fire/…) so the search box
filters the ~150-emoji set. The 🙂 composer button toggles the overlay;
selecting an emoji appends it to the composer (byte-cap respected) and the
overlay stays open for multiple picks.

+1 CJK glyph (絵) for the ja "Search emoji" string.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

res/lang/de.json

@@ -139,6 +139,7 @@
     "chat_cancel": "Abbrechen",
     "chat_contact_added": "Kontakt hinzugefügt – benenne ihn in Kontakte um",
     "chat_contact_request": "kontaktanfrage",
+    "chat_emoji_search": "Emoji suchen",
     "chat_empty_hint": "Noch keine Unterhaltungen. Nachrichten, die du erhältst, erscheinen hier.",
     "chat_empty_start": "Starte eine mit \"Neue Unterhaltung\".",
     "chat_empty_title": "Noch keine Unterhaltungen",
@@ -148,6 +149,7 @@
     "chat_export_warn": "Speichert die entschlüsselten Nachrichten als Klartext. Bewahre die Datei sicher auf.",
     "chat_hidden_toast": "Unterhaltung ausgeblendet – eine neue Nachricht holt sie zurück",
     "chat_hide": "Ausblenden",
+    "chat_hide_hidden": "Ausgeblendete verbergen",
     "chat_jump_latest": "Neueste",
     "chat_len_over": "Nachricht zu lang",
     "chat_locked_hint": "Entsperre deine Wallet, um deine Chats zu laden.",
@@ -167,6 +169,7 @@
     "chat_send": "Senden",
     "chat_send_failed": "nicht gesendet",
     "chat_sending": "senden…",
+    "chat_show_hidden": "Ausgeblendete anzeigen",
     "chat_time_now": "jetzt",
     "chat_toast_compose_failed": "Nachricht konnte nicht erstellt werden (zu lang?).",
     "chat_toast_lite_busy": "Es wird bereits gesendet, oder es ist keine Wallet geöffnet.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "Kontaktanfrage konnte nicht erstellt werden (ungültige Adresse / ungültiger Text?).",
     "chat_toast_request_queued": "Kontaktanfrage in Warteschlange.",
     "chat_toast_waiting_reply": "Warte auf die Antwort des Kontakts, bevor du ihm schreiben kannst.",
+    "chat_unhide": "Einblenden",
     "chat_unmute": "Stummschaltung aufheben",
     "chat_waiting_reply": "Warte auf die Antwort dieses Kontakts – sobald er antwortet, kannst du ihm schreiben.",
     "chat_you": "Du",

res/lang/es.json

@@ -139,6 +139,7 @@
     "chat_cancel": "Cancelar",
     "chat_contact_added": "Contacto añadido: renómbralo en Contactos",
     "chat_contact_request": "solicitud de contacto",
+    "chat_emoji_search": "Buscar emoji",
     "chat_empty_hint": "Aún no hay conversaciones. Los mensajes que recibas aparecerán aquí.",
     "chat_empty_start": "Inicia una con \"Nueva conversación\".",
     "chat_empty_title": "Aún no hay conversaciones",
@@ -148,6 +149,7 @@
     "chat_export_warn": "Guarda los mensajes descifrados como texto sin cifrar. Guarda el archivo de forma segura.",
     "chat_hidden_toast": "Conversación oculta: un mensaje nuevo la recupera",
     "chat_hide": "Ocultar",
+    "chat_hide_hidden": "Ocultar ocultos",
     "chat_jump_latest": "Recientes",
     "chat_len_over": "Mensaje demasiado largo",
     "chat_locked_hint": "Desbloquea tu monedero para cargar tus chats.",
@@ -167,6 +169,7 @@
     "chat_send": "Enviar",
     "chat_send_failed": "no enviado",
     "chat_sending": "enviando…",
+    "chat_show_hidden": "Ver ocultos",
     "chat_time_now": "ahora",
     "chat_toast_compose_failed": "No se pudo componer el mensaje (¿demasiado largo?).",
     "chat_toast_lite_busy": "Ya hay un envío en curso, o no hay ningún monedero abierto.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "No se pudo componer la solicitud de contacto (¿dirección o texto no válidos?).",
     "chat_toast_request_queued": "Solicitud de contacto en cola.",
     "chat_toast_waiting_reply": "Espera a que este contacto responda antes de poder escribirle.",
+    "chat_unhide": "Mostrar",
     "chat_unmute": "Reactivar",
     "chat_waiting_reply": "Esperando a que este contacto responda: podrás escribirle una vez lo haga.",
     "chat_you": "Tú",

res/lang/fr.json

@@ -139,6 +139,7 @@
     "chat_cancel": "Annuler",
     "chat_contact_added": "Contact ajouté — renommez-le dans Contacts",
     "chat_contact_request": "demande de contact",
+    "chat_emoji_search": "Rechercher un emoji",
     "chat_empty_hint": "Aucune conversation pour l'instant. Les messages que vous recevez apparaîtront ici.",
     "chat_empty_start": "Commencez-en une avec « Nouvelle conversation ».",
     "chat_empty_title": "Aucune conversation pour l'instant",
@@ -148,6 +149,7 @@
     "chat_export_warn": "Enregistre les messages déchiffrés en texte clair. Conservez le fichier en lieu sûr.",
     "chat_hidden_toast": "Conversation masquée — un nouveau message la fait réapparaître",
     "chat_hide": "Masquer",
+    "chat_hide_hidden": "Masquer masqués",
     "chat_jump_latest": "Récents",
     "chat_len_over": "Message trop long",
     "chat_locked_hint": "Déverrouillez votre portefeuille pour charger vos discussions.",
@@ -167,6 +169,7 @@
     "chat_send": "Envoyer",
     "chat_send_failed": "non envoyé",
     "chat_sending": "envoi…",
+    "chat_show_hidden": "Afficher masqués",
     "chat_time_now": "à l'instant",
     "chat_toast_compose_failed": "Impossible de composer le message (trop long ?).",
     "chat_toast_lite_busy": "Un envoi est déjà en cours, ou aucun portefeuille n'est ouvert.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "Impossible de composer la demande de contact (adresse / texte invalide ?).",
     "chat_toast_request_queued": "Demande de contact mise en file d'attente.",
     "chat_toast_waiting_reply": "En attente de la réponse de ce contact avant de pouvoir lui écrire.",
+    "chat_unhide": "Afficher",
     "chat_unmute": "Réactiver",
     "chat_waiting_reply": "En attente de la réponse de ce contact — vous pourrez lui écrire dès qu'il aura répondu.",
     "chat_you": "Vous",

res/lang/ja.json

@@ -139,6 +139,7 @@
     "chat_cancel": "キャンセル",
     "chat_contact_added": "連絡先を追加しました — 連絡先で名前を変更できます",
     "chat_contact_request": "連絡リクエスト",
+    "chat_emoji_search": "絵文字を検索",
     "chat_empty_hint": "まだ会話はありません。受信したメッセージはここに表示されます。",
     "chat_empty_start": "「新しい会話」から始めましょう。",
     "chat_empty_title": "会話はまだありません",
@@ -148,6 +149,7 @@
     "chat_export_warn": "復号したメッセージを平文で保存します。ファイルは安全に保管してください。",
     "chat_hidden_toast": "会話を非表示にしました — 新しいメッセージが届くと再表示されます",
     "chat_hide": "非表示",
+    "chat_hide_hidden": "非表示を隠す",
     "chat_jump_latest": "最新",
     "chat_len_over": "メッセージが長すぎます",
     "chat_locked_hint": "チャットを読み込むにはウォレットのロックを解除してください。",
@@ -167,6 +169,7 @@
     "chat_send": "送信",
     "chat_send_failed": "未送信",
     "chat_sending": "送信中…",
+    "chat_show_hidden": "非表示を表示",
     "chat_time_now": "たった今",
     "chat_toast_compose_failed": "メッセージを作成できませんでした（長すぎませんか？）。",
     "chat_toast_lite_busy": "すでに送信処理が進行中か、ウォレットが開かれていません。",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "連絡リクエストを作成できませんでした（アドレスまたはテキストが無効？）。",
     "chat_toast_request_queued": "連絡リクエストを送信待ちに追加しました。",
     "chat_toast_waiting_reply": "メッセージを送るには、この相手からの返信を待つ必要があります。",
+    "chat_unhide": "再表示",
     "chat_unmute": "ミュート解除",
     "chat_waiting_reply": "この相手からの返信を待っています — 返信があればメッセージを送れます。",
     "chat_you": "自分",

res/lang/ko.json

@@ -139,6 +139,7 @@
     "chat_cancel": "취소",
     "chat_contact_added": "연락처 추가됨 — 연락처에서 이름을 변경하세요",
     "chat_contact_request": "연락 요청",
+    "chat_emoji_search": "이모지 검색",
     "chat_empty_hint": "아직 대화가 없습니다. 받은 메시지가 여기에 표시됩니다.",
     "chat_empty_start": "\"새 대화\"로 시작하세요.",
     "chat_empty_title": "아직 대화가 없습니다",
@@ -148,6 +149,7 @@
     "chat_export_warn": "복호화된 메시지를 일반 텍스트로 저장합니다. 파일을 안전하게 보관하세요.",
     "chat_hidden_toast": "대화를 숨겼습니다 — 새 메시지가 오면 다시 표시됩니다",
     "chat_hide": "숨기기",
+    "chat_hide_hidden": "숨김 접기",
     "chat_jump_latest": "최신",
     "chat_len_over": "메시지가 너무 깁니다",
     "chat_locked_hint": "채팅을 불러오려면 지갑 잠금을 해제하세요.",
@@ -167,6 +169,7 @@
     "chat_send": "전송",
     "chat_send_failed": "전송 안 됨",
     "chat_sending": "전송 중…",
+    "chat_show_hidden": "숨김 보기",
     "chat_time_now": "방금",
     "chat_toast_compose_failed": "메시지를 작성할 수 없습니다 (너무 긴가요?).",
     "chat_toast_lite_busy": "이미 전송이 진행 중이거나 열린 지갑이 없습니다.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "연락 요청을 작성할 수 없습니다 (잘못된 주소 / 텍스트?).",
     "chat_toast_request_queued": "연락 요청이 대기열에 추가되었습니다.",
     "chat_toast_waiting_reply": "상대방이 답장해야 메시지를 보낼 수 있습니다.",
+    "chat_unhide": "다시 표시",
     "chat_unmute": "음소거 해제",
     "chat_waiting_reply": "상대방의 답장을 기다리는 중입니다 — 답장하면 메시지를 보낼 수 있습니다.",
     "chat_you": "나",

res/lang/pt.json

@@ -139,6 +139,7 @@
     "chat_cancel": "Cancelar",
     "chat_contact_added": "Contato adicionado — renomeie em Contatos",
     "chat_contact_request": "solicitação de contato",
+    "chat_emoji_search": "Pesquisar emoji",
     "chat_empty_hint": "Nenhuma conversa ainda. As mensagens que você receber aparecerão aqui.",
     "chat_empty_start": "Inicie uma com \"Nova conversa\".",
     "chat_empty_title": "Ainda não há conversas",
@@ -148,6 +149,7 @@
     "chat_export_warn": "Salva as mensagens descriptografadas como texto simples. Guarde o arquivo com segurança.",
     "chat_hidden_toast": "Conversa ocultada — uma nova mensagem a traz de volta",
     "chat_hide": "Ocultar",
+    "chat_hide_hidden": "Ocultar ocultas",
     "chat_jump_latest": "Recentes",
     "chat_len_over": "Mensagem muito longa",
     "chat_locked_hint": "Desbloqueie sua carteira para carregar suas conversas.",
@@ -167,6 +169,7 @@
     "chat_send": "Enviar",
     "chat_send_failed": "não enviada",
     "chat_sending": "enviando…",
+    "chat_show_hidden": "Ver ocultas",
     "chat_time_now": "agora",
     "chat_toast_compose_failed": "Não foi possível compor a mensagem (muito longa?).",
     "chat_toast_lite_busy": "Já há um envio em andamento, ou nenhuma carteira está aberta.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "Não foi possível compor a solicitação de contato (endereço / texto inválido?).",
     "chat_toast_request_queued": "Solicitação de contato na fila.",
     "chat_toast_waiting_reply": "Aguardando a resposta do contato antes que você possa enviar mensagens a ele.",
+    "chat_unhide": "Mostrar",
     "chat_unmute": "Reativar som",
     "chat_waiting_reply": "Aguardando a resposta deste contato — você poderá enviar mensagens assim que ele responder.",
     "chat_you": "Você",

res/lang/ru.json

@@ -139,6 +139,7 @@
     "chat_cancel": "Отмена",
     "chat_contact_added": "Контакт добавлен — переименуйте его в Контактах",
     "chat_contact_request": "запрос контакта",
+    "chat_emoji_search": "Поиск эмодзи",
     "chat_empty_hint": "Пока нет переписок. Полученные сообщения появятся здесь.",
     "chat_empty_start": "Начните новый с помощью «Новый разговор».",
     "chat_empty_title": "Пока нет разговоров",
@@ -148,6 +149,7 @@
     "chat_export_warn": "Сохраняет расшифрованные сообщения в виде обычного текста. Храните файл в надёжном месте.",
     "chat_hidden_toast": "Разговор скрыт — новое сообщение вернёт его",
     "chat_hide": "Скрыть",
+    "chat_hide_hidden": "Скрыть скрытые",
     "chat_jump_latest": "Новые",
     "chat_len_over": "Сообщение слишком длинное",
     "chat_locked_hint": "Разблокируйте кошелёк, чтобы загрузить переписку.",
@@ -167,6 +169,7 @@
     "chat_send": "Отправить",
     "chat_send_failed": "не отправлено",
     "chat_sending": "отправка…",
+    "chat_show_hidden": "Показать скрытые",
     "chat_time_now": "сейчас",
     "chat_toast_compose_failed": "Не удалось составить сообщение (слишком длинное?).",
     "chat_toast_lite_busy": "Отправка уже выполняется, или кошелёк не открыт.",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "Не удалось составить запрос контакта (неверный адрес / текст?).",
     "chat_toast_request_queued": "Запрос контакта поставлен в очередь.",
     "chat_toast_waiting_reply": "Ожидание ответа от контакта — вы сможете писать ему только после этого.",
+    "chat_unhide": "Показать",
     "chat_unmute": "Включить уведомления",
     "chat_waiting_reply": "Ожидание ответа от контакта — вы сможете писать ему, как только он ответит.",
     "chat_you": "Вы",

res/lang/zh.json

@@ -139,6 +139,7 @@
     "chat_cancel": "取消",
     "chat_contact_added": "已添加联系人——可在联系人中重命名",
     "chat_contact_request": "联系人请求",
+    "chat_emoji_search": "搜索表情",
     "chat_empty_hint": "暂无对话。您收到的消息将显示在此处。",
     "chat_empty_start": "点击\"新建会话\"开始。",
     "chat_empty_title": "还没有会话",
@@ -148,6 +149,7 @@
     "chat_export_warn": "将解密后的消息保存为纯文本。请妥善保管该文件。",
     "chat_hidden_toast": "会话已隐藏——收到新消息后会重新显示",
     "chat_hide": "隐藏",
+    "chat_hide_hidden": "收起已隐藏",
     "chat_jump_latest": "最新",
     "chat_len_over": "消息过长",
     "chat_locked_hint": "解锁钱包以加载您的聊天记录。",
@@ -167,6 +169,7 @@
     "chat_send": "发送",
     "chat_send_failed": "未发送",
     "chat_sending": "发送中…",
+    "chat_show_hidden": "显示已隐藏",
     "chat_time_now": "刚刚",
     "chat_toast_compose_failed": "无法编写该消息（内容过长？）。",
     "chat_toast_lite_busy": "已有发送正在进行中，或未打开任何钱包。",
@@ -176,6 +179,7 @@
     "chat_toast_request_compose_failed": "无法编写联系人请求（地址或文本无效？）。",
     "chat_toast_request_queued": "联系人请求已排队。",
     "chat_toast_waiting_reply": "等待该联系人回复——对方回复后您即可向其发送消息。",
+    "chat_unhide": "取消隐藏",
     "chat_unmute": "取消静音",
     "chat_waiting_reply": "等待该联系人回复——对方回复后您即可向其发送消息。",
     "chat_you": "我",

src/app.cpp

@@ -1168,8 +1168,14 @@ void App::update()
                 } else if (walletDataPage && shouldRefreshRecentTransactions()) {
                     refreshRecentTransactionData();
                 }
-                // 0-conf chat: the normal harvest above only re-scans on a new block, so also do a light
+            }
-                // mempool scan of the chat address every cycle to surface messages before confirmation.
+            // 0-conf chat: a DEDICATED ~2.5s mempool scan of the chat address, independent of the page's
+            // (slower, 10–15s) Transactions cadence — so incoming messages surface in a few seconds. The
+            // normal harvest only re-scans on a new block. Self-gated (no-op without a chat identity /
+            // connection / on lite); the in-flight guard keeps overlapping RPCs from stacking.
+            chat_fast_scan_accum_ += ImGui::GetIO().DeltaTime;
+            if (chat_fast_scan_accum_ >= 2.5f) {
+                chat_fast_scan_accum_ = 0.0f;
                 fastScanChatMemos();
             }
             if (network_refresh_.consumeDue(RefreshTimer::Addresses)) {

src/app.h

@@ -735,6 +735,7 @@ private:
     // (they still un-hide via the normal confirmed harvest). Self-gated; no-op without a chat identity.
     void fastScanChatMemos();
     bool chat_fast_scan_in_flight_ = false;   // guard against overlapping fast-scan RPCs
+    float chat_fast_scan_accum_ = 0.0f;       // seconds since the last fast-scan (dedicated ~2.5s poll)
     // Lite first-run welcome prompt: dismissed for the session once the user picks an action.
     bool lite_firstrun_dismissed_ = false;
     // Lite send-time unlock: set to show the unlock modal when a spend is attempted while locked.

src/ui/windows/chat_tab.cpp

@@ -48,6 +48,9 @@ bool s_show_new_convo = false;
 char s_new_zaddr[128] = "";
 char s_new_msg[256] = "";
 char s_search[80] = "";       // conversation-list filter (Q8)
+bool s_show_hidden = false;   // when on, the list also shows hidden conversations (with an Unhide action)
+bool s_show_emoji_picker = false;  // emoji picker overlay — fills the conversation-list pane while open
+char s_emoji_search[48] = "";      // emoji picker keyword filter
 
 // Effective draw-list font size for a material font (mirrors sidebar's ScaledFontSize).
 float scaledSize(ImFont* f) { return f->LegacySize * ImGui::GetStyle().FontScaleMain; }
@@ -136,6 +139,7 @@ struct ConvSummary {
     std::string lastBody;
     std::int64_t lastTs = 0;
     int count = 0;
+    bool hidden = false;     // shown only while "Show hidden" is on
 };
 
 // Centered, muted, wrapped hint for the empty states.
@@ -199,6 +203,77 @@ void centeredEmptyState(const char* icon, const char* title, const char* hint) {
     }
 }
 
+// Common single-codepoint emoji (all verified present in the bundled NotoEmoji subset), each with
+// keyword text for the picker's search box. Single-codepoint only — ImGui does no shaping, so ZWJ
+// sequences / flags wouldn't compose.
+struct EmojiEntry { const char* glyph; const char* keywords; };
+static const EmojiEntry kEmoji[] = {
+    {u8"😀","grin happy smile"},{u8"😃","smile happy joy"},{u8"😄","laugh happy smile"},{u8"😁","grin beam happy"},
+    {u8"😆","laugh haha"},{u8"😅","sweat laugh nervous"},{u8"😂","joy laugh tears cry funny"},{u8"🤣","rofl laugh rolling funny"},
+    {u8"😊","blush smile happy"},{u8"😇","angel innocent halo"},{u8"🙂","slight smile"},{u8"🙃","upside down silly"},
+    {u8"😉","wink"},{u8"😌","relieved calm"},{u8"😍","heart eyes love"},{u8"🥰","love hearts adore"},{u8"😘","kiss blow"},
+    {u8"😗","kiss"},{u8"😙","kiss smile"},{u8"😚","kiss closed"},{u8"😋","yum tasty tongue"},{u8"😛","tongue playful"},
+    {u8"😝","tongue squint"},{u8"😜","wink tongue crazy"},{u8"🤪","zany crazy silly"},{u8"🤨","raised eyebrow suspicious"},
+    {u8"🧐","monocle thinking"},{u8"🤓","nerd geek glasses"},{u8"😎","cool sunglasses"},{u8"🥳","party celebrate hat"},
+    {u8"😏","smirk"},{u8"😒","unamused meh"},{u8"😞","disappointed sad"},{u8"😔","pensive sad"},{u8"😟","worried"},
+    {u8"😕","confused"},{u8"🙁","frown sad"},{u8"😣","persevere"},{u8"😖","confounded"},{u8"😫","tired"},{u8"😩","weary"},
+    {u8"🥺","pleading puppy beg"},{u8"😢","cry sad tear"},{u8"😭","sob cry bawl"},{u8"😤","huff triumph steam"},
+    {u8"😠","angry mad"},{u8"😡","rage mad angry"},{u8"🤬","curse swear angry"},{u8"🤯","mind blown shock"},
+    {u8"😳","flushed embarrassed"},{u8"🥵","hot heat sweat"},{u8"🥶","cold freezing"},{u8"😱","scream fear shock"},
+    {u8"😨","fearful scared"},{u8"😰","anxious sweat"},{u8"😥","sad sweat"},{u8"😓","sweat"},{u8"🤗","hug"},
+    {u8"🤔","think hmm"},{u8"🤭","giggle oops hand"},{u8"🤫","shush quiet"},{u8"🤥","lie"},{u8"😶","no mouth blank"},
+    {u8"😐","neutral meh"},{u8"😑","expressionless"},{u8"😬","grimace awkward"},{u8"🙄","eye roll"},{u8"😯","hushed surprise"},
+    {u8"😦","frown open"},{u8"😧","anguished"},{u8"😮","wow surprise oh"},{u8"😲","astonished shock"},{u8"🥱","yawn tired bored"},
+    {u8"😴","sleep zzz"},{u8"🤤","drool"},{u8"😪","sleepy"},{u8"🤐","zipper quiet secret"},{u8"🥴","woozy dizzy drunk"},
+    {u8"🤢","nausea sick"},{u8"🤮","vomit sick"},{u8"🤧","sneeze sick"},{u8"😷","mask sick"},{u8"🤒","sick thermometer"},
+    {u8"🤕","hurt bandage injured"},{u8"😈","devil imp evil"},{u8"👿","devil angry"},{u8"💀","skull dead"},{u8"👻","ghost boo"},
+    {u8"👽","alien"},{u8"🤖","robot bot"},{u8"😺","cat smile"},{u8"🙀","cat scream"},
+    {u8"👍","thumbs up like yes good"},{u8"👎","thumbs down dislike no bad"},{u8"👌","ok perfect"},{u8"✌","peace victory"},
+    {u8"🤞","fingers crossed luck"},{u8"🤟","love you"},{u8"🤘","rock horns"},{u8"👏","clap applause"},
+    {u8"🙌","raise hands celebrate"},{u8"👐","open hands"},{u8"🙏","pray thanks please"},{u8"💪","muscle strong flex"},
+    {u8"👋","wave hi hello bye"},{u8"🤙","call shaka"},{u8"👊","fist punch bump"},{u8"✊","fist raised"},{u8"🤛","fist left"},
+    {u8"🤜","fist right"},{u8"👆","up point"},{u8"👇","down point"},{u8"👈","left point"},{u8"👉","right point"},
+    {u8"❤","heart red love"},{u8"🧡","heart orange"},{u8"💛","heart yellow"},{u8"💚","heart green"},{u8"💙","heart blue"},
+    {u8"💜","heart purple"},{u8"🖤","heart black"},{u8"🤍","heart white"},{u8"💔","broken heart"},{u8"💕","hearts love"},
+    {u8"💞","revolving hearts"},{u8"💗","growing heart"},{u8"💖","sparkling heart"},{u8"💘","heart arrow cupid"},
+    {u8"💝","heart gift ribbon"},{u8"🔥","fire lit hot flame"},{u8"⭐","star"},{u8"🎉","party tada celebrate confetti"},
+    {u8"🎊","confetti party"},{u8"✨","sparkles shiny"},{u8"💯","hundred perfect 100"},{u8"✅","check yes done tick"},
+    {u8"❌","cross no wrong x"},{u8"❓","question mark"},{u8"❗","exclamation mark"},{u8"👀","eyes look"},{u8"🎂","cake birthday"},
+    {u8"🚀","rocket launch"},{u8"💰","money bag cash"},{u8"🎁","gift present"},{u8"🍺","beer"},{u8"🍻","beers cheers"},
+    {u8"☕","coffee tea"},{u8"🍕","pizza"},{u8"👑","crown king queen"},{u8"💎","diamond gem"},{u8"🌟","glowing star"},
+    {u8"💥","boom explosion"},
+};
+
+// Emoji picker overlay: fills the conversation-list pane (cancel + keyword search at the top, then a
+// grid). Clicking an emoji appends its UTF-8 bytes to `buf` (the composer), respecting the buffer.
+void renderEmojiPickerOverlay(char* buf, std::size_t bufSize) {
+    if (ImGui::SmallButton(TR("chat_cancel"))) { s_show_emoji_picker = false; s_emoji_search[0] = '\0'; return; }
+    ImGui::SameLine();
+    ImGui::SetNextItemWidth(-FLT_MIN);
+    ImGui::InputTextWithHint("##emojisearch", TR("chat_emoji_search"), s_emoji_search, sizeof(s_emoji_search));
+    ImGui::Separator();
+
+    const std::string q = s_emoji_search;
+    ImGui::BeginChild("##emojigrid", ImVec2(0, 0), false);
+    ImGui::PushFont(material::Type().subtitle1());   // larger + emoji-capable
+    const float cell = 32.0f * Layout::dpiScale();
+    const float step = cell + ImGui::GetStyle().ItemSpacing.x;
+    const int perRow = std::max(1, static_cast<int>(ImGui::GetContentRegionAvail().x / step));
+    int shown = 0;
+    for (const auto& e : kEmoji) {
+        if (!q.empty() && !containsCI(e.keywords, q)) continue;
+        ImGui::PushID(shown);
+        if (ImGui::Button(e.glyph, ImVec2(cell, cell))) {
+            const std::size_t cur = std::strlen(buf), add = std::strlen(e.glyph);
+            if (cur + add < bufSize) { std::memcpy(buf + cur, e.glyph, add); buf[cur + add] = '\0'; }
+        }
+        ImGui::PopID();
+        if (++shown % perRow != 0) ImGui::SameLine();
+    }
+    ImGui::PopFont();
+    ImGui::EndChild();
+}
+
 } // namespace
 
 void RenderChatTab(App* app)
@@ -215,12 +290,16 @@ void RenderChatTab(App* app)
 
     // Build conversation summaries (single scan per conversation), sorted by most-recent activity.
     std::vector<ConvSummary> convs;
+    int hiddenCount = 0;
     for (const auto& cid : store.conversationIds()) {
-        if (app->settings() && app->settings()->isChatHidden(cid)) continue;  // hidden — a new message un-hides it
+        const bool hidden = app->settings() && app->settings()->isChatHidden(cid);
+        if (hidden) ++hiddenCount;
+        if (hidden && !s_show_hidden) continue;   // filtered out unless "Show hidden" is on
         const auto messages = store.conversation(cid);
         if (messages.empty()) continue;
         ConvSummary c;
         c.cid = cid;
+        c.hidden = hidden;
         c.count = static_cast<int>(messages.size());
         for (const auto& m : messages) {  // pin to the EARLIEST (establishing) peer z-addr / key (B2 — the
             if (c.peerZaddr.empty() && !m.peer_zaddr.empty()) c.peerZaddr = m.peer_zaddr;   // memo header rides
@@ -268,7 +347,10 @@ void RenderChatTab(App* app)
     // Faint sidebar tint so the list reads as distinct from the thread pane (V6).
     ImGui::PushStyleColor(ImGuiCol_ChildBg, ImGui::ColorConvertU32ToFloat4(material::WithAlpha(material::OnSurface(), 10)));
     ImGui::BeginChild("##ChatList", ImVec2(listW, avail.y), true);
-    {
+    if (s_show_emoji_picker) {
+        // Emoji picker overlay takes over the conversation-list pane while open (search + cancel + grid).
+        renderEmojiPickerOverlay(s_compose, sizeof(s_compose));
+    } else {
         // Accented "New conversation" action (house tactile style).
         ImGui::PushStyleColor(ImGuiCol_Button,        ImGui::ColorConvertU32ToFloat4(material::WithAlpha(material::Primary(), 205)));
         ImGui::PushStyleColor(ImGuiCol_ButtonHovered, ImGui::ColorConvertU32ToFloat4(material::Primary()));
@@ -285,6 +367,18 @@ void RenderChatTab(App* app)
             ImGui::SetNextItemWidth(-FLT_MIN);
             ImGui::InputTextWithHint("##chatsearch", TR("chat_search"), s_search, sizeof(s_search));
         }
+        // Show-hidden toggle — only when there are hidden conversations. Reveals them in the list (with
+        // an Unhide action in the thread header).
+        if (hiddenCount > 0) {
+            ImGui::PushFont(metaFont);
+            const std::string lbl = s_show_hidden
+                ? std::string(TR("chat_hide_hidden"))
+                : std::string(TR("chat_show_hidden")) + " (" + std::to_string(hiddenCount) + ")";
+            if (ImGui::SmallButton(lbl.c_str())) s_show_hidden = !s_show_hidden;
+            ImGui::PopFont();
+        } else {
+            s_show_hidden = false;   // nothing hidden → keep the toggle off
+        }
         const std::string search = s_search;
         ImGui::Separator();
         if (convs.empty()) {
@@ -335,8 +429,9 @@ void RenderChatTab(App* app)
             }
             const float textX = avC.x + avR + pad;
 
-            // Name (top).
+            // Name (top). Hidden conversations (shown via "Show hidden") render dimmed.
-            dl->AddText(nameFont, nameSz, ImVec2(textX, p.y + pad), material::OnSurface(), c.peerName.c_str());
+            dl->AddText(nameFont, nameSz, ImVec2(textX, p.y + pad),
+                        c.hidden ? material::OnSurfaceMedium() : material::OnSurface(), c.peerName.c_str());
             // Time (top-right, muted) — compact relative form (Q5).
             const std::string when = relativeTime(c.lastTs);
             if (!when.empty()) {
@@ -440,15 +535,20 @@ void RenderChatTab(App* app)
                     app->settings()->setChatMuted(sel->cid, !muted);
                     app->settings()->save();
                 }
-                // Hide conversation — drops it from the list (messages stay in the encrypted store; a
+                // Hide / Unhide. Hiding drops it from the list (messages stay in the encrypted store);
-                // new incoming message brings it back). Deselect so the thread resets to the next one.
+                // Unhide (shown only for a hidden conversation while "Show hidden" is on) restores it.
                 ImGui::SameLine();
-                if (ImGui::SmallButton(TR("chat_hide")) && app->settings()) {
+                if (ImGui::SmallButton(sel->hidden ? TR("chat_unhide") : TR("chat_hide")) && app->settings()) {
-                    app->markChatConversationSeen(sel->cid, sel->lastTs);  // don't leave a phantom unread
+                    if (sel->hidden) {
-                    app->settings()->setChatHidden(sel->cid, true);
+                        app->settings()->setChatHidden(sel->cid, false);
-                    app->settings()->save();
+                        app->settings()->save();
-                    s_selected_cid.clear();
+                    } else {
-                    Notifications::instance().info(TR("chat_hidden_toast"));
+                        app->markChatConversationSeen(sel->cid, sel->lastTs);  // don't leave a phantom unread
+                        app->settings()->setChatHidden(sel->cid, true);
+                        app->settings()->save();
+                        s_selected_cid.clear();
+                        Notifications::instance().info(TR("chat_hidden_toast"));
+                    }
                 }
             }
             ImGui::Separator();
@@ -596,6 +696,13 @@ void RenderChatTab(App* app)
                 if (material::TactileButton(TR("chat_send"), ImVec2(sendW, composerBoxH))) submit = true;
                 ImGui::EndDisabled();
                 ImGui::PopStyleColor(3);
+                // Emoji picker button (left) + byte counter (right) on one row. The picker opens as an
+                // overlay over the conversation-list pane (rendered there), not a floating window.
+                ImGui::PushFont(nameFont);   // Body2 has emoji merged, so the glyph renders
+                const bool emojiClicked = ImGui::SmallButton(u8"🙂");
+                ImGui::PopFont();
+                if (emojiClicked) { s_show_emoji_picker = !s_show_emoji_picker; s_emoji_search[0] = '\0'; }
+                ImGui::SameLine();
                 // Byte counter (Error tint over cap) with the over-cap label.
                 ImGui::PushFont(metaFont);
                 ImGui::PushStyleColor(ImGuiCol_Text, overCap ? material::Error() : material::OnSurfaceMedium());

src/util/i18n.cpp

@@ -253,6 +253,10 @@ void I18n::loadBuiltinEnglish()
         strings_["chat_mute"] = "Mute";
         strings_["chat_unmute"] = "Unmute";
         strings_["chat_hide"] = "Hide";
+        strings_["chat_unhide"] = "Unhide";
+        strings_["chat_show_hidden"] = "Show hidden";
+        strings_["chat_emoji_search"] = "Search emoji";
+        strings_["chat_hide_hidden"] = "Hide hidden";
         strings_["chat_hidden_toast"] = "Conversation hidden — a new message brings it back";
         strings_["chat_pick_contact"] = "Choose from contacts\xE2\x80\xA6";
         strings_["chat_no_z_contacts"] = "No shielded-address contacts yet";