18 files changed, 723 insertions, 86 deletions

diff --git a/lib/the_Foundation b/lib/the_Foundation
-Subproject 33c52862c69c964f8eef025841b4f32072ed597
+Subproject 4a2cd8896bf7fabbe7345c245a052083c6c1c3e
diff --git a/po/fr.po b/po/fr.po
index e0522323..e0d5a5b2 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -1,7 +1,7 @@
 msgid ""
 msgstr ""
 "Report-Msgid-Bugs-To: jaakko.keranen@iki.fi\n"
-"PO-Revision-Date: 2021-05-21 08:18+0000\n"
+"PO-Revision-Date: 2021-08-05 14:07+0000\n"
 "Last-Translator: MCMic <come@chilliet.eu>\n"
 "Language-Team: French <http://weblate.skyjake.fi/projects/lagrange/ui/fr/>\n"
 "Language: fr\n"
@@ -583,7 +583,7 @@ msgid "feeds.refresh"
 msgstr "Actualiser les flux"
 
 msgid "hint.findtext"
-msgstr "Chercher dans le texte de la page"
+msgstr "chercher dans le texte de la page"
 
 msgid "mb.per.sec"
 msgstr "Mo/s"
@@ -730,7 +730,7 @@ msgid "heading.prefs.colors"
 msgstr "Couleurs"
 
 msgid "heading.prefs.fonts"
-msgstr "POLICES"
+msgstr "Polices"
 
 msgid "prefs.doctheme.name.white"
 msgstr "Blanc"
@@ -1437,7 +1437,7 @@ msgid "prefs.mono"
 msgstr "Chasse fixe :"
 
 msgid "hint.newident.date"
-msgstr "AAAA-MM-JJ HH:MM:SS"
+msgstr "AAAA ou AAAA-MM-JJ"
 
 msgid "link.hint.audio"
 msgstr "Lire l’audio"
@@ -1604,3 +1604,228 @@ msgstr "Échanger les côtés"
 
 msgid "keys.split.menu"
 msgstr "Définir le mode de vues séparées"
+
+msgid "bookmark.export.title.folder"
+msgstr "Signets"
+
+msgid "bookmark.export.title.tag"
+msgstr "Étiquettes de signet"
+
+msgid "bookmark.export.saving"
+msgstr ""
+"Enregistrez cette page pour les exporter, ou copiez-les dans le presse-"
+"papiers."
+
+msgid "bookmark.export.taginfo"
+msgstr ""
+"Dans cette liste, chaque titre représente une étiquette de signet. Seuls les "
+"signets étiquetés sont listés. Ceux avec plusieurs étiquettes sont dupliqués "
+"sous chacune d'elles."
+
+msgid "hint.upload.text"
+msgstr "entrer le texte à téléverser"
+
+msgid "upload.mime"
+msgstr "Type MIME :"
+
+msgid "error.certverify.msg"
+msgstr ""
+"La connexion au serveur a été interrompue car le certificat TLS reçu ne "
+"correspond pas à celui auquel nous faisons confiance. Veuillez vérifier si "
+"le serveur a signalé un changement de certificat. Si ce n’est pas le cas, il "
+"est possible qu’un tiers se fasse passer pour le serveur que vous essayez "
+"d’atteindre.\n"
+"\n"
+"Le certificat peut être marqué comme étant de confiance dans les "
+"Informations de la Page."
+
+msgid "dlg.input.linebreak"
+msgstr "Saut de ligne"
+
+msgid "link.file.delete"
+msgstr "Supprimer le fichier"
+
+msgid "heading.file.delete"
+msgstr "SUPPRESSION DE FICHIER"
+
+msgid "dlg.file.delete.confirm"
+msgstr "Voulez-vous vraiment supprimer ce fichier ?"
+
+msgid "dlg.file.delete"
+msgstr "Supprimer"
+
+msgid "prefs.animate"
+msgstr "Animations :"
+
+msgid "upload.port"
+msgstr "Port…"
+
+msgid "heading.uploadport"
+msgstr "PORT DE TÉLÉVERSEMENT TITAN"
+
+msgid "dlg.uploadport.msg"
+msgstr ""
+"Définit le port du serveur Titan à utiliser pour cette URL.\n"
+"Le port est enregistré dans la configuration spécifique au site."
+
+msgid "dlg.uploadport.set"
+msgstr "Définir le port"
+
+msgid "heading.prefs.uitheme"
+msgstr "INTERFACE"
+
+msgid "prefs.userfont"
+msgstr "Police des symboles :"
+
+msgid "keys.split.item"
+msgstr "Menu Diviser la vue :"
+
+msgid "error.certexpired"
+msgstr "Certificat expiré"
+
+msgid "error.certexpired.msg"
+msgstr "La connexion au serveur a été annulée car son certificat TLS a expiré."
+
+msgid "prefs.pinsplit.left"
+msgstr "Côté gauche"
+
+msgid "prefs.pinsplit.right"
+msgstr "Coté droit"
+
+msgid "hint.prefs.userfont"
+msgstr "chemin d’une police TrueType"
+
+msgid "prefs.linespacing"
+msgstr "Interligne :"
+
+msgid "prefs.memorysize"
+msgstr "Taille mémoire :"
+
+msgid "close"
+msgstr "Fermer"
+
+msgid "ident.export"
+msgstr "Exporter"
+
+msgid "error.server.msg"
+msgstr "Le serveur a répondu avec le message :"
+
+msgid "dlg.newident.scope"
+msgstr "Utiliser pour :"
+
+msgid "dlg.newident.more"
+msgstr "Plus…"
+
+msgid "dlg.newident.scope.domain"
+msgstr "Domaine actuel"
+
+msgid "dlg.newident.scope.page"
+msgstr "Page actuelle"
+
+msgid "dlg.newident.scope.none"
+msgstr "Non utilisée"
+
+msgid "prefs.scrollspeed.keyboard"
+msgstr "Vitesse du clavier :"
+
+msgid "prefs.scrollspeed.mouse"
+msgstr "Vitesse de la souris :"
+
+msgid "prefs.returnkey"
+msgstr "Touche Entrée :"
+
+msgid "prefs.returnkey.linebreak"
+msgstr "Saut de ligne"
+
+msgid "prefs.returnkey.accept"
+msgstr "Accepter"
+
+msgid "menu.save.downloads.open"
+msgstr "Enregistrer dans les téléchargements et ouvrir le fichier"
+
+msgid "menu.pageinfo"
+msgstr "Afficher les informations de la page"
+
+msgid "status.query.tight"
+msgstr "Recherche"
+
+msgid "media.untitled.image"
+msgstr "Image"
+
+msgid "media.untitled.audio"
+msgstr "Audio"
+
+msgid "feeds.atom.translated"
+msgstr ""
+"Ce document XML Atom a été automatiquement converti en flux Gemini pour qu’"
+"il soit possible de s’y abonner."
+
+msgid "menu.openfile"
+msgstr "Ouvrir un fichier…"
+
+msgid "bookmark.export.title.time"
+msgstr "Signets créés"
+
+msgid "bookmark.export.count"
+msgid_plural "bookmark.export.count.n"
+msgstr[0] "Vous avez %d signet."
+msgstr[1] "Vous avez %d signets."
+
+msgid "bookmark.export.format.sub"
+msgstr ""
+"Cette page est formatée selon la spécification complémentaire « Subscribing "
+"to Gemini pages »."
+
+msgid "bookmark.export.format.linklines"
+msgstr "Chaque lien représente un signet."
+
+msgid "bookmark.export.format.otherlines"
+msgstr ""
+"Les lignes avec puce et les citations sont réservées pour des informations "
+"supplémentaires sur le signet qui les précède. Les lignes de texte et le "
+"texte préformaté sont traités comme des commentaires et doivent être ignorés."
+
+msgid "bookmark.export.format.folders"
+msgstr "La structure du dossier est définie par les titres de niveaux 2 et 3."
+
+msgid "bookmark.export.format.tags"
+msgstr "Les étiquettes sont définies par les titres de niveau 2."
+
+msgid "menu.page.upload"
+msgstr "Téléverser la page avec Titan"
+
+msgid "heading.upload"
+msgstr "TÉLÉVERSEMENT AVEC TITAN"
+
+msgid "heading.upload.text"
+msgstr "Texte"
+
+msgid "heading.upload.file"
+msgstr "Fichier"
+
+msgid "upload.file.name"
+msgstr "Nom du fichier :"
+
+msgid "upload.file.drophere"
+msgstr "(glisser-et-déposer un fichier sur la fenêtre)"
+
+msgid "upload.file.size"
+msgstr "Taille du fichier :"
+
+msgid "upload.token"
+msgstr "Jeton de téléversement :"
+
+msgid "hint.upload.token"
+msgstr "voir les instructions du serveur"
+
+msgid "dlg.upload.send"
+msgstr "Téléverser"
+
+msgid "keys.upload"
+msgstr "Téléverser la page avec Titan"
+
+msgid "keys.split.next"
+msgstr "Basculer entre les côtés"
+
+msgid "error.certverify"
+msgstr "Certificat inconnu"
diff --git a/po/ru.po b/po/ru.po
index e6d76237..7955c82a 100644
--- a/po/ru.po
+++ b/po/ru.po
@@ -3,7 +3,7 @@ msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: jaakko.keranen@iki.fi\n"
 "POT-Creation-Date: 2021-03-23 19:02+0000\n"
-"PO-Revision-Date: 2021-07-25 18:06+0000\n"
+"PO-Revision-Date: 2021-08-10 12:07+0000\n"
 "Last-Translator: Olga Smirnova <mistresssilvara@hotmail.com>\n"
 "Language-Team: Russian <http://weblate.skyjake.fi/projects/lagrange/ui/ru/>\n"
 "Language: ru\n"
@@ -1760,3 +1760,57 @@ msgstr ""
 "выполнялось подключение.\n"
 "\n"
 "Сертификат можно пометить как доверенный в окне «Сведения о странице»."
+
+msgid "media.untitled.image"
+msgstr "Изображение"
+
+msgid "feeds.atom.translated"
+msgstr ""
+"Этот XML-документ Atom был преобразован в ленту Gemini, чтобы на нее можно "
+"было подписаться."
+
+msgid "bookmark.export.count"
+msgid_plural "bookmark.export.count.n"
+msgstr[0] "Всего %d закладка."
+msgstr[1] "Всего %d закладки."
+msgstr[2] "Всего %d закладок."
+
+msgid "bookmark.export.format.sub"
+msgstr ""
+"Эта страница отформатирована в соответствии со вспомогательной спецификацией "
+"«Subscribing to Gemini pages»."
+
+msgid "bookmark.export.format.otherlines"
+msgstr ""
+"Маркеры списка и цитаты содержат дополнительные сведения о предыдущей "
+"закладке. Строки текста и форматированный текст считаются примечаниями и "
+"игнорируются."
+
+msgid "bookmark.export.taginfo"
+msgstr ""
+"Каждый заголовок в этом списке представляет тэг закладки. Включены только "
+"закладки с тэгами. Закладки с несколькими тэгами появляются несколько раз."
+
+msgid "media.untitled.audio"
+msgstr "Аудио"
+
+msgid "bookmark.export.title.folder"
+msgstr "Закладки"
+
+msgid "bookmark.export.title.time"
+msgstr "Созданные закладки"
+
+msgid "bookmark.export.saving"
+msgstr "Сохраните страницу для экспорта, или скопируйте их в Буфер обмена."
+
+msgid "bookmark.export.title.tag"
+msgstr "Тэги закладок"
+
+msgid "bookmark.export.format.linklines"
+msgstr "Каждая ссылка представляет собой закладку."
+
+msgid "bookmark.export.format.folders"
+msgstr "Структура папок выражается заголовками 2/3 уровня."
+
+msgid "bookmark.export.format.tags"
+msgstr "Тэги представлены заголовками 2-го уровня."
diff --git a/po/sk.po b/po/sk.po
new file mode 100644
index 00000000..f622e5ef
--- /dev/null
+++ b/po/sk.po
@@ -0,0 +1,285 @@
+msgid ""
+msgstr ""
+"Report-Msgid-Bugs-To: jaakko.keranen@iki.fi\n"
+"PO-Revision-Date: 2021-08-12 08:52+0000\n"
+"Last-Translator: Marek Ľach <mareklachbc@tutanota.com>\n"
+"Language-Team: Slovak <http://weblate.skyjake.fi/projects/lagrange/ui/sk/>\n"
+"Language: sk\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=3; plural=(n==1) ? 0 : (n>=2 && n<=4) ? 1 : 2;\n"
+"X-Generator: Weblate 4.5.1\n"
+
+# Link download progress message.
+msgid "doc.fetching"
+msgstr "Získava sa"
+
+msgid "doc.archive.view"
+msgstr "Zobraziť obsah archívu"
+
+msgid "media.untitled.image"
+msgstr "Obrázok"
+
+msgid "media.untitled.audio"
+msgstr "Zvuk"
+
+# Inline download status message.
+msgid "media.download.complete"
+msgstr "Sťahovanie dokončené."
+
+# Used in inline audio player metadata popup.
+msgid "audio.meta.title"
+msgstr "Názov"
+
+# Used in inline audio player metadata popup.
+msgid "audio.meta.genre"
+msgstr "Žáner"
+
+# Used in inline audio player metadata popup.
+msgid "audio.meta.date"
+msgstr "Dátum"
+
+# Used in about:feeds.
+msgid "feeds.list.title"
+msgstr "Položky kanála"
+
+#, c-format
+msgid "feeds.list.entrycount"
+msgid_plural "feeds.list.entrycount.n"
+msgstr[0] "celkovo %z položka"
+msgstr[1] "celkovo %z položiek"
+msgstr[2] "celkovo %z položky"
+
+msgid "feeds.list.refreshtime.now"
+msgstr "Posledné obnovenie prebehlo iba pred chvíľou."
+
+#, c-format
+msgid "feeds.list.refreshtime"
+msgstr "Posledné obnovenie prebehlo pred %s."
+
+#, c-format
+msgid "minutes.ago"
+msgid_plural "minutes.ago.n"
+msgstr[0] "pred %d minútou"
+msgstr[1] "pred %d minútami"
+msgstr[2] "pred %d minútami"
+
+#, c-format
+msgid "days.ago"
+msgid_plural "days.ago.n"
+msgstr[0] "pred %d dňom"
+msgstr[1] "pred %d dňami"
+msgstr[2] "pred %d dňami"
+
+msgid "about.tagline"
+msgstr "Pekný Gemini klient"
+
+msgid "about.version"
+msgstr "Verzia"
+
+msgid "cancel"
+msgstr "Zrušiť"
+
+msgid "close"
+msgstr "Zatvoriť"
+
+msgid "dlg.message.ok"
+msgstr "Pokračovať"
+
+msgid "toggle.no"
+msgstr "NIE"
+
+msgid "menu.title.file"
+msgstr "Súbor"
+
+msgid "menu.title.edit"
+msgstr "Upraviť"
+
+msgid "menu.title.view"
+msgstr "Zobrazenie"
+
+msgid "menu.title.bookmarks"
+msgstr "Záložky"
+
+msgid "menu.title.identity"
+msgstr "Totožnosť"
+
+msgid "menu.title.help"
+msgstr "Pomoc"
+
+msgid "menu.newtab"
+msgstr "Nová karta"
+
+msgid "menu.closetab"
+msgstr "Zatvoriť kartu"
+
+msgid "menu.closetab.right"
+msgstr "Zatvoriť karty smerom doprava"
+
+msgid "menu.split.merge"
+msgstr "Spojiť karty"
+
+msgid "menu.split.swap"
+msgstr "Prehodiť strany"
+
+msgid "menu.split.horizontal"
+msgstr "Horizontálne"
+
+msgid "menu.openlocation"
+msgstr "Otvoriť lokalitu…"
+
+msgid "menu.downloads"
+msgstr "Ukázať stiahnuté súbory"
+
+msgid "menu.pageinfo"
+msgstr "Ukázať informácie o stránke"
+
+msgid "macos.menu.find"
+msgstr "Nájsť"
+
+# Used on desktop operating systems. "Downloads" refers to the user's configured downloads directory.
+msgid "menu.save.downloads"
+msgstr "Uložiť medzi stiahnuté súbory"
+
+msgid "menu.save.downloads.open"
+msgstr "Uložiť medzi stiahnuté, a otvoriť súbor"
+
+msgid "menu.zoom.in"
+msgstr "Priblížiť"
+
+msgid "menu.zoom.out"
+msgstr "Oddialiť"
+
+msgid "menu.view.split"
+msgstr "Rozdelené zobrazenie..."
+
+msgid "macos.menu.bookmarks.list"
+msgstr "Ukázať všetky"
+
+msgid "menu.bookmarks.bytag"
+msgstr "Ukázať záložky podľa značenia"
+
+msgid "menu.bookmarks.bytime"
+msgstr "Zobraziť záložky podľa dátumu vytvorenia"
+
+msgid "macos.menu.bookmarks.bytime"
+msgstr "Zobraziť podľa dátumu vytvorenia"
+
+msgid "menu.feeds.entrylist"
+msgstr "Ukázať položky kanála"
+
+msgid "menu.preferences"
+msgstr "Voľby…"
+
+msgid "menu.help"
+msgstr "Pomoc"
+
+msgid "menu.copy"
+msgstr "Kopírovať"
+
+msgid "menu.paste"
+msgstr "Vložiť"
+
+msgid "menu.select.clear"
+msgstr "Zrušiť výber"
+
+# Used in the View menu on macOS. Shows sidebar and switches sidebar tab.
+msgid "menu.show.bookmarks"
+msgstr "Ukázať záložky"
+
+# Used in the View menu on macOS. Shows sidebar and switches sidebar tab.
+msgid "menu.show.feeds"
+msgstr "Ukázať kanály"
+
+# Used in the View menu on macOS. Shows sidebar and switches sidebar tab.
+msgid "menu.show.history"
+msgstr "Ukázať históriu"
+
+msgid "menu.back"
+msgstr "Ísť späť"
+
+msgid "menu.forward"
+msgstr "Ísť vpred"
+
+msgid "menu.root"
+msgstr "Ísť na základný"
+
+msgid "menu.parent"
+msgstr "Ísť na nadradený"
+
+msgid "menu.reload"
+msgstr "Načítať stránku znova"
+
+msgid "menu.page.subscribe"
+msgstr "Odoberať stránku…"
+
+msgid "menu.about"
+msgstr "O"
+
+msgid "panel.back"
+msgstr "Späť"
+
+msgid "doc.pre.nocaption"
+msgstr "Predformátovaný text bez popisu"
+
+# Inline download status message.
+msgid "media.download.warnclose"
+msgstr "Sťahovanie bude zrušené v prípade, že je táto záložka zatvorená."
+
+# Used in inline audio player metadata popup.
+msgid "audio.meta.artist"
+msgstr "Tvorca"
+
+#, c-format
+msgid "feeds.list.counts"
+msgid_plural "feeds.list.counts.n"
+msgstr[0] "Odoberáte %z kanál, ktorý obsahuje %%.\n"
+msgstr[1] "Odoberáte %z kanálov, ktoré obsahujú %%.\n"
+msgstr[2] "Odoberáte %z kanály, ktoré obsahujú %%.\n"
+
+#, c-format
+msgid "hours.ago"
+msgid_plural "hours.ago.n"
+msgstr[0] "pred %d hodinou"
+msgstr[1] "pred %d hodinami"
+msgstr[2] "pred %d hodinami"
+
+msgid "about.powered"
+msgstr "Poháňané SDL 2, OpenSSL, a ☕️"
+
+msgid "toggle.yes"
+msgstr "ÁNO"
+
+msgid "menu.closetab.other"
+msgstr "Zatvoriť ostatné karty"
+
+msgid "menu.closetab.left"
+msgstr "Zatvoriť karty smerom doľava"
+
+msgid "menu.split.vertical"
+msgstr "Vertikálne"
+
+msgid "menu.find"
+msgstr "Nájsť na stránke"
+
+# Used on iOS. "Files" refers to Apple's iOS app where you can pick an iCloud folder.
+msgid "menu.save.files"
+msgstr "Uložiť do Súborov"
+
+msgid "menu.bookmarks.list"
+msgstr "Ukázať všetky záložky"
+
+msgid "macos.menu.bookmarks.bytag"
+msgstr "Ukázať podľa značenia"
+
+msgid "menu.cut"
+msgstr "Vystrihnúť"
+
+# Used in the Edit menu on macOS. Note: could be replaced with menu.page.copyurl.
+msgid "menu.copy.pagelink"
+msgstr "Kopírovať adresu stránky"
+
+# Used in the View menu on macOS. Shows sidebar and switches sidebar tab.
+msgid "menu.show.identities"
+msgstr "Ukázať totožnosti"
diff --git a/res/about/version.gmi b/res/about/version.gmi
index 72b46e23..1fce4188 100644
--- a/res/about/version.gmi
+++ b/res/about/version.gmi
@@ -9,8 +9,14 @@
 ## 1.6.3
 * Select all text in an input field using Shift+Ctrl+A (macOS: ⌘A).
 * Input fields do not lose focus when the window becomes inactive, making it easier to resume input afterwards.
+* Fixed delay after switching to split view mode.
+* Fixed what gets drawn in an empty tab, before a document is available for rendering (e.g., after switching to split view mode).
+* Fixed highlighting the domain name in URL input fields.
+* Fixed hiding the Gemini URL scheme in input fields when the window is narrow.
 * Fixed the line break key modifier inadvertently affecting URL input fields, where line breaks are not allowed.
 * Fixed the line break key modifier affecting the upload dialog's text field.
+* Fixed a potential hang when closing a socket before the connection is fully opened.
+* Updated translations.
 
 ## 1.6.2
 * Added `--tab-url` to print currently active tab's URL.
diff --git a/res/fi.skyjake.Lagrange.appdata.xml b/res/fi.skyjake.Lagrange.appdata.xml
index 1db2717c..0259aa1e 100644
--- a/res/fi.skyjake.Lagrange.appdata.xml
+++ b/res/fi.skyjake.Lagrange.appdata.xml
@@ -45,6 +45,40 @@
     <update_contact>jaakko.keranen@iki.fi</update_contact>
 
     <releases>
+        <release version="1.6.3" date="2021-08-15">
+            <description>
+                <p>Version 1.6 adds support for bidirectional text and complex scripts,
+                    right-to-left paragraph layout, uploads using the Titan protocol,
+                    and has an improved mechanism for tracking trust in server
+                    certificates. Page contents can be fully cached in memory for more
+                    efficient backward navigation. There are also UI improvements like
+                    a reorganized Preferences and a setting for smooth scrolling
+                    speed.</p>
+                <p>Changes and fixes in v1.6.3:</p>
+                <ul>
+                    <li>Select all text in an input field using Shift+Ctrl+A.</li>
+                    <li>Input fields do not lose focus when the window becomes
+                        inactive, making it easier to resume input afterwards.</li>
+                    <li>Fixed delay after switching to split view mode.</li>
+                    <li>Fixed what gets drawn in an empty tab, before a document is
+                        available for rendering (e.g., after switching to split view
+                        mode).</li>
+                    <li>Fixed highlighting the domain name in URL input fields.</li>
+                    <li>Fixed hiding the Gemini URL scheme in input fields when the
+                        window is narrow.</li>
+                    <li>Fixed the line break key modifier inadvertently affecting URL
+                        input fields, where line breaks are not allowed.</li>
+                    <li>Fixed the line break key modifier affecting the upload dialog's
+                        text field.</li>
+                    <li>Fixed a potential hang when closing a socket before the
+                        connection is fully opened.</li>
+                    <li>Updated translations.</li>                    
+                </ul>
+                <p>The full release notes can be viewed inside the app by opening
+                    the "about:version" page.</p>
+            </description>
+            <url>https://github.com/skyjake/lagrange/releases/tag/v1.6.3</url>
+        </release>        
         <release version="1.6.2" date="2021-08-03">
             <description>
                 <p>Version 1.6 adds support for bidirectional text and complex scripts,
diff --git a/res/lang/fr.bin b/res/lang/fr.bin
index 9c3024f8..86282bc2 100644
--- a/res/lang/fr.bin
+++ b/res/lang/fr.bin
diff --git a/res/lang/ru.bin b/res/lang/ru.bin
index 176fa4fe..687adc01 100644
--- a/res/lang/ru.bin
+++ b/res/lang/ru.bin
diff --git a/src/app.c b/src/app.c
index 8318eee4..bcd06722 100644
--- a/src/app.c
+++ b/src/app.c
@@ -1992,6 +1992,7 @@ iBool handleCommand_App(const char *cmd) {
             (argLabel_Command(cmd, "axis") ? vertical_WindowSplit : 0) | (arg_Command(cmd) << 1);
         const char *url = suffixPtr_Command(cmd, "url");
         setCStr_String(get_Window()->pendingSplitUrl, url ? url : "");
+        postRefresh_App();
         return iTrue;
     }
     else if (equal_Command(cmd, "window.retain")) {
diff --git a/src/gmcerts.h b/src/gmcerts.h
index 1a9480f7..02a41c14 100644
--- a/src/gmcerts.h
+++ b/src/gmcerts.h
@@ -60,9 +60,10 @@ iDeclareTypeConstructionArgs(GmCerts, const char *saveDir)
 
 typedef iBool (*iGmCertsIdentityFilterFunc)(void *context, const iGmIdentity *);
 
-iBool               checkTrust_GmCerts      (iGmCerts *, iRangecc domain, uint16_t port, const iTlsCertificate *cert);
-void                setTrusted_GmCerts      (iGmCerts *, iRangecc domain, uint16_t port, const iBlock *fingerprint,
-                                             const iDate *validUntil);
+iBool               checkTrust_GmCerts      (iGmCerts *, iRangecc domain, uint16_t port,
+                                             const iTlsCertificate *cert);
+void                setTrusted_GmCerts      (iGmCerts *, iRangecc domain, uint16_t port,
+                                             const iBlock *fingerprint, const iDate *validUntil);
 iTime               domainValidUntil_GmCerts(const iGmCerts *, iRangecc domain, uint16_t port);
 
 /**
@@ -81,7 +82,8 @@ iGmIdentity *       newIdentity_GmCerts     (iGmCerts *, int flags, iDate validU
                                              const iString *userId, const iString *domain,
                                              const iString *org, const iString *country);
 
-void                importIdentity_GmCerts  (iGmCerts *, iTlsCertificate *cert, const iString *notes); /* takes ownership */
+void                importIdentity_GmCerts  (iGmCerts *, iTlsCertificate *cert,
+                                             const iString *notes); /* takes ownership */
 void                deleteIdentity_GmCerts  (iGmCerts *, iGmIdentity *identity);
 void                saveIdentities_GmCerts  (const iGmCerts *);
 
diff --git a/src/macos.m b/src/macos.m
index 6bec3c12..d588fa4a 100644
--- a/src/macos.m
+++ b/src/macos.m
@@ -60,6 +60,7 @@ static NSString *currentSystemAppearance_(void) {
 }
 
 iBool shouldDefaultToMetalRenderer_MacOS(void) {
+    /* TODO: Test if SDL 2.0.16 works better (no stutters with Metal?). */
     return iFalse; /*
     const iInt2 ver = macVer_();
     return ver.x > 10 || ver.y > 13;*/
diff --git a/src/ui/documentwidget.c b/src/ui/documentwidget.c
index 674b0352..a89eb0eb 100644
--- a/src/ui/documentwidget.c
+++ b/src/ui/documentwidget.c
@@ -4799,64 +4799,67 @@ static void draw_DocumentWidget_(const iDocumentWidget *d) {
     };
     init_Paint(&ctx.paint);
     render_DocumentWidget_(d, &ctx, iFalse /* just the mandatory parts */);
-    setClip_Paint(&ctx.paint, clipBounds);
-    int yTop = docBounds.pos.y - pos_SmoothScroll(&d->scrollY);
-    draw_VisBuf(d->visBuf, init_I2(bounds.pos.x, yTop), ySpan_Rect(bounds));
-    /* Text markers. */
+    int         yTop             = docBounds.pos.y - pos_SmoothScroll(&d->scrollY);
+    const iBool isDocEmpty       = size_GmDocument(d->doc).y == 0;
     const iBool isTouchSelecting = (flags_Widget(w) & touchDrag_WidgetFlag) != 0;
-    if (!isEmpty_Range(&d->foundMark) || !isEmpty_Range(&d->selectMark)) {
-        SDL_Renderer *render = renderer_Window(get_Window());
-        ctx.firstMarkRect = zero_Rect();
-        ctx.lastMarkRect = zero_Rect();
-        SDL_SetRenderDrawBlendMode(render,
-                                   isDark_ColorTheme(colorTheme_App()) ? SDL_BLENDMODE_ADD
-                                                                       : SDL_BLENDMODE_BLEND);
-        ctx.viewPos = topLeft_Rect(docBounds);
-        /* Marker starting outside the visible range? */
-        if (d->visibleRuns.start) {
-            if (!isEmpty_Range(&d->selectMark) &&
-                d->selectMark.start < d->visibleRuns.start->text.start &&
-                d->selectMark.end > d->visibleRuns.start->text.start) {
-                ctx.inSelectMark = iTrue;
+    if (!isDocEmpty) {
+        setClip_Paint(&ctx.paint, clipBounds);
+        draw_VisBuf(d->visBuf, init_I2(bounds.pos.x, yTop), ySpan_Rect(bounds));
+        /* Text markers. */
+        if (!isEmpty_Range(&d->foundMark) || !isEmpty_Range(&d->selectMark)) {
+            SDL_Renderer *render = renderer_Window(get_Window());
+            ctx.firstMarkRect = zero_Rect();
+            ctx.lastMarkRect = zero_Rect();
+            SDL_SetRenderDrawBlendMode(render,
+                                       isDark_ColorTheme(colorTheme_App()) ? SDL_BLENDMODE_ADD
+                                                                           : SDL_BLENDMODE_BLEND);
+            ctx.viewPos = topLeft_Rect(docBounds);
+            /* Marker starting outside the visible range? */
+            if (d->visibleRuns.start) {
+                if (!isEmpty_Range(&d->selectMark) &&
+                    d->selectMark.start < d->visibleRuns.start->text.start &&
+                    d->selectMark.end > d->visibleRuns.start->text.start) {
+                    ctx.inSelectMark = iTrue;
+                }
+                if (isEmpty_Range(&d->foundMark) &&
+                    d->foundMark.start < d->visibleRuns.start->text.start &&
+                    d->foundMark.end > d->visibleRuns.start->text.start) {
+                    ctx.inFoundMark = iTrue;
+                }
             }
-            if (isEmpty_Range(&d->foundMark) &&
-                d->foundMark.start < d->visibleRuns.start->text.start &&
-                d->foundMark.end > d->visibleRuns.start->text.start) {
-                ctx.inFoundMark = iTrue;
+            render_GmDocument(d->doc, vis, drawMark_DrawContext_, &ctx);
+            SDL_SetRenderDrawBlendMode(render, SDL_BLENDMODE_NONE);
+            /* Selection range pins. */
+            if (isTouchSelecting) {
+                drawPin_(&ctx.paint, ctx.firstMarkRect, 0);
+                drawPin_(&ctx.paint, ctx.lastMarkRect, 1);
             }
         }
-        render_GmDocument(d->doc, vis, drawMark_DrawContext_, &ctx);
-        SDL_SetRenderDrawBlendMode(render, SDL_BLENDMODE_NONE);
-        /* Selection range pins. */
-        if (isTouchSelecting) {
-            drawPin_(&ctx.paint, ctx.firstMarkRect, 0);
-            drawPin_(&ctx.paint, ctx.lastMarkRect, 1);
-        }
-    }
-    drawMedia_DocumentWidget_(d, &ctx.paint);
-    /* Fill the top and bottom, in case the document is short. */
-    if (yTop > top_Rect(bounds)) {
-        fillRect_Paint(&ctx.paint,
-                       (iRect){ bounds.pos, init_I2(bounds.size.x, yTop - top_Rect(bounds)) },
-                       hasSiteBanner_GmDocument(d->doc) ? tmBannerBackground_ColorId
-                                                        : tmBackground_ColorId);
-    }
-    const int yBottom = yTop + size_GmDocument(d->doc).y + 1;
-    if (yBottom < bottom_Rect(bounds)) {
-        fillRect_Paint(&ctx.paint,
-                       init_Rect(bounds.pos.x, yBottom, bounds.size.x, bottom_Rect(bounds) - yBottom),
-                       tmBackground_ColorId);
-    }
-    unsetClip_Paint(&ctx.paint);
-    drawSideElements_DocumentWidget_(d);
-    if (prefs_App()->hoverLink && d->hoverLink) {
-        const int      font     = uiLabel_FontId;
-        const iRangecc linkUrl  = range_String(linkUrl_GmDocument(d->doc, d->hoverLink->linkId));
-        const iInt2    size     = measureRange_Text(font, linkUrl).bounds.size;
-        const iRect    linkRect = { addY_I2(bottomLeft_Rect(bounds), -size.y),
-                                    addX_I2(size, 2 * gap_UI) };
-        fillRect_Paint(&ctx.paint, linkRect, tmBackground_ColorId);
-        drawRange_Text(font, addX_I2(topLeft_Rect(linkRect), gap_UI), tmParagraph_ColorId, linkUrl);
+        drawMedia_DocumentWidget_(d, &ctx.paint);
+        /* Fill the top and bottom, in case the document is short. */   
+        if (yTop > top_Rect(bounds)) {
+            fillRect_Paint(&ctx.paint,
+                           (iRect){ bounds.pos, init_I2(bounds.size.x, yTop - top_Rect(bounds)) },
+                           hasSiteBanner_GmDocument(d->doc) ? tmBannerBackground_ColorId
+                                                            : tmBackground_ColorId);
+        }
+        const int yBottom = yTop + size_GmDocument(d->doc).y + 1;
+        if (yBottom < bottom_Rect(bounds)) {
+            fillRect_Paint(&ctx.paint,
+                           init_Rect(bounds.pos.x, yBottom, bounds.size.x, bottom_Rect(bounds) - yBottom),
+                           tmBackground_ColorId);
+        }
+        unsetClip_Paint(&ctx.paint);
+        drawSideElements_DocumentWidget_(d);
+        if (prefs_App()->hoverLink && d->hoverLink) {
+            const int      font     = uiLabel_FontId;
+            const iRangecc linkUrl  = range_String(linkUrl_GmDocument(d->doc, d->hoverLink->linkId));
+            const iInt2    size     = measureRange_Text(font, linkUrl).bounds.size;
+            const iRect    linkRect = { addY_I2(bottomLeft_Rect(bounds), -size.y),
+                                        addX_I2(size, 2 * gap_UI) };
+            fillRect_Paint(&ctx.paint, linkRect, tmBackground_ColorId);
+            drawRange_Text(font, addX_I2(topLeft_Rect(linkRect), gap_UI), tmParagraph_ColorId, linkUrl);
+        }
     }
     if (colorTheme_App() == pureWhite_ColorTheme) {
         drawHLine_Paint(&ctx.paint, topLeft_Rect(bounds), width_Rect(bounds), uiSeparator_ColorId);
diff --git a/src/ui/inputwidget.c b/src/ui/inputwidget.c
index f1f368b6..9f233345 100644
--- a/src/ui/inputwidget.c
+++ b/src/ui/inputwidget.c
@@ -691,7 +691,6 @@ void setMode_InputWidget(iInputWidget *d, enum iInputMode mode) {
     d->mode = mode;
 }
 
-#if 0
 static void restoreDefaultScheme_(iString *url) {
     iUrl parts;
     init_Url(&parts, url);
@@ -706,17 +705,14 @@ static const iString *omitDefaultScheme_(iString *url) {
     }
     return url;
 }
-#endif
 
 const iString *text_InputWidget(const iInputWidget *d) {
     if (d) {
         iString *text = collect_String(text_InputWidget_(d));
-#if 0
         if (d->inFlags & isUrl_InputWidgetFlag) {
             /* Add the "gemini" scheme back if one is omitted. */
             restoreDefaultScheme_(text);
         }
-#endif
         return text;
     }
     return collectNew_String();
@@ -820,6 +816,22 @@ static void updateBuffered_InputWidget_(iInputWidget *d) {
         for (int i = visRange.start; i < visRange.end; i++) {
             append_String(visText, &line_InputWidget_(d, i)->text);
         }
+        if (d->inFlags & isUrl_InputWidgetFlag) {
+            /* Highlight the host name. */
+            iUrl parts;
+            init_Url(&parts, visText);
+            if (!isEmpty_Range(&parts.host)) {
+                const char *cstr = cstr_String(visText);
+                insertData_Block(&visText->chars,
+                                 parts.host.end - cstr,
+                                 restore_ColorEscape,
+                                 strlen(restore_ColorEscape));
+                insertData_Block(&visText->chars,
+                                 parts.host.start - cstr,
+                                 uiTextStrong_ColorEscape,
+                                 strlen(uiTextStrong_ColorEscape));
+            }
+        }
         iWrapText wt = wrap_InputWidget_(d, 0);
         wt.text = range_String(visText);
         const int fg = uiInputText_ColorId;
@@ -853,12 +865,10 @@ void setText_InputWidget(iInputWidget *d, const iString *text) {
             punyEncodeUrlHost_String(enc);
             text = enc;
         }
-#if 0
         /* Omit the default (Gemini) scheme if there isn't much space. */
         if (isNarrow_Root(as_Widget(d)->root)) {
             text = omitDefaultScheme_(collect_String(copy_String(text)));
         }
-#endif
     }
     clearUndo_InputWidget_(d);
     iString *nfcText = collect_String(copy_String(text));
@@ -873,10 +883,6 @@ void setText_InputWidget(iInputWidget *d, const iString *text) {
     if (!isFocused_Widget(d)) {
         iZap(d->mark);
     }
-//    else {
-//        d->cursor.y = iMin(d->cursor.y, (int) size_Array(&d->lines) - 1);
-//        d->cursor.x = iMin(d->cursor.x, size_String(&cursorLine_InputWidget_(d)->text));
-//    }
     if (!isFocused_Widget(d)) {
         d->inFlags |= needUpdateBuffer_InputWidgetFlag;
     }
@@ -1414,12 +1420,10 @@ static iBool processEvent_InputWidget_(iInputWidget *d, const SDL_Event *ev) {
     /* Resize according to width immediately. */
     if (d->lastUpdateWidth != w->rect.size.x) {
         d->inFlags |= needUpdateBuffer_InputWidgetFlag;
-#if 0
         if (d->inFlags & isUrl_InputWidgetFlag) {
             /* Restore/omit the default scheme if necessary. */
             setText_InputWidget(d, text_InputWidget(d));
         }
-#endif
         updateAllLinesAndResizeHeight_InputWidget_(d);
         d->lastUpdateWidth = w->rect.size.x;
     }
diff --git a/src/ui/labelwidget.c b/src/ui/labelwidget.c
index a9a2d033..edc36a49 100644
--- a/src/ui/labelwidget.c
+++ b/src/ui/labelwidget.c
@@ -30,6 +30,8 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
 #include "keys.h"
 #include "touch.h"
 
+#include <SDL_version.h>
+
 struct Impl_LabelWidget {
     iWidget widget;
     iString srcLabel;
@@ -295,9 +297,18 @@ static void draw_LabelWidget_(const iLabelWidget *d) {
         iRect frameRect = adjusted_Rect(rect, zero_I2(), init1_I2(-1));
         if (isButton) {
             iInt2 points[] = {
-                bottomLeft_Rect(frameRect), topLeft_Rect(frameRect), topRight_Rect(frameRect),
-                bottomRight_Rect(frameRect), bottomLeft_Rect(frameRect)
+                bottomLeft_Rect(frameRect),
+                topLeft_Rect(frameRect),
+                topRight_Rect(frameRect),
+                bottomRight_Rect(frameRect),
+                bottomLeft_Rect(frameRect)
             };
+#if SDL_VERSION_ATLEAST(2, 0, 16)
+            if (isOpenGLRenderer_Window()) {
+                /* A very curious regression in SDL 2.0.16. */
+                points[3].x--;    
+            }
+#endif
             drawLines_Paint(&p, points + 2, 3, frame2);
             drawLines_Paint(
                 &p, points, !isHover && flags & d->flags.noTopFrame ? 2 : 3, frame);
diff --git a/src/ui/paint.c b/src/ui/paint.c
index c575d5fc..79adb7d1 100644
--- a/src/ui/paint.c
+++ b/src/ui/paint.c
@@ -89,13 +89,19 @@ void drawRect_Paint(const iPaint *d, iRect rect, int color) {
     /* Keep the right/bottom edge visible in the window. */
     if (br.x == d->dst->size.x) br.x--;
     if (br.y == d->dst->size.y) br.y--;
-    const SDL_Point edges[] = {
+    SDL_Point edges[] = {
         { left_Rect(rect),  top_Rect(rect) },
-        { br.x, top_Rect(rect) },
-        { br.x, br.y },
+        { br.x,             top_Rect(rect) },
+        { br.x,             br.y },
         { left_Rect(rect),  br.y },
         { left_Rect(rect),  top_Rect(rect) }
     };
+#if SDL_VERSION_ATLEAST(2, 0, 16)
+    if (isOpenGLRenderer_Window()) {
+        /* A very curious regression in SDL 2.0.16. */
+        edges[3].y--;
+    }
+#endif
     setColor_Paint_(d, color);
     SDL_RenderDrawLines(renderer_Paint_(d), edges, iElemCount(edges));
 }
diff --git a/src/ui/visbuf.c b/src/ui/visbuf.c
index 88a5fd60..503d0a2f 100644
--- a/src/ui/visbuf.c
+++ b/src/ui/visbuf.c
@@ -58,18 +58,14 @@ void alloc_VisBuf(iVisBuf *d, const iInt2 size, int granularity) {
             if (tex->texture) {
                 SDL_DestroyTexture(tex->texture);
             }
+            SDL_Renderer *rend = renderer_Window(get_Window());
             tex->texture =
-                SDL_CreateTexture(renderer_Window(get_Window()),
+                SDL_CreateTexture(rend,
                                   SDL_PIXELFORMAT_RGBA8888,
                                   SDL_TEXTUREACCESS_STATIC | SDL_TEXTUREACCESS_TARGET,
                                   texSize.x,
                                   texSize.y);
             SDL_SetTextureBlendMode(tex->texture, SDL_BLENDMODE_NONE);
-//            tex->origin = i * texSize.y;
-//            iZap(tex->validRange);
-//          if (d->invalidUserData) {
-//                d->invalidUserData(i, d->buffers[i].user);
-//            }
         }
         invalidate_VisBuf(d);
     }
diff --git a/src/ui/window.c b/src/ui/window.c
index 6b8abb4d..86d22b1c 100644
--- a/src/ui/window.c
+++ b/src/ui/window.c
@@ -65,6 +65,8 @@ static float initialUiScale_ = 1.0f;
 static float initialUiScale_ = 1.1f;
 #endif
 
+static iBool isOpenGLRenderer_;
+
 iDefineTypeConstructionArgs(Window, (iRect rect), rect)
 
 /* TODO: Define menus per platform. */
@@ -446,6 +448,7 @@ void init_Window(iWindow *d, iRect rect) {
     /* Some info. */ {
         SDL_RendererInfo info;
         SDL_GetRendererInfo(d->render, &info);
+        isOpenGLRenderer_ = !iCmpStr(info.name, "opengl");
         printf("[window] renderer: %s%s\n", info.name,
                info.flags & SDL_RENDERER_ACCELERATED ? " (accelerated)" : "");
 #if !defined (NDEBUG)
@@ -1187,6 +1190,10 @@ iWindow *get_Window(void) {
     return theWindow_;
 }
 
+iBool isOpenGLRenderer_Window(void) {
+    return isOpenGLRenderer_;
+}
+
 void setKeyboardHeight_Window(iWindow *d, int height) {
     if (d->keyboardHeight != height) {
         d->keyboardHeight = height;
diff --git a/src/ui/window.h b/src/ui/window.h
index bb98dbe9..63f7e5f2 100644
--- a/src/ui/window.h
+++ b/src/ui/window.h
@@ -137,6 +137,8 @@ iRoot *     findRoot_Window         (const iWindow *, const iWidget *widget);
 iRoot *     otherRoot_Window        (const iWindow *, iRoot *root);
 iWindow *   get_Window              (void);
 
+iBool       isOpenGLRenderer_Window (void);
+
 #if defined (LAGRANGE_ENABLE_CUSTOM_FRAME)
 SDL_HitTestResult hitTest_Window(const iWindow *d, iInt2 pos);
 #endif