core: implement /theme save and /theme del

Add two complementary subcommands: /theme save <name> [-full]: writes a user theme file at ${weechat_config_dir}/themes/<name>.theme containing the current themable options. By default only options whose value differs from their default (config_file_option_has_changed) are written, which keeps the file small and focused. Pass "-full" to write every themable option (matches the format used by automatic backups). Name validation: refuses any name matching a built-in theme (those are reserved for in-memory registrations) and any name starting with "backup-" (reserved for /theme apply backups). Both checks print an error and abort without writing. /theme del <name>: removes ${weechat_config_dir}/themes/<name>.theme via unlink. Refuses to delete a name registered as a built-in theme (a built-in has no file on disk to delete, even if the user has a shadowing file of the same name they cannot remove it this way; they can rename or delete it manually). The full-snapshot writer used by /theme apply backups is refactored into theme_write_file (name, description, diff_only). It is reused by theme_make_backup (diff_only=0) and theme_save (diff_only inverted from the user's -full flag).
2026-07-05 09:13:14 +02:00 · 2026-07-04 17:02:12 +02:00
parent 0e245e8e0c
commit 9e7903c601
18 changed files with 919 additions and 42 deletions
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-05-30 14:01+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: Czech <weechat-dev@nongnu.org>\n"
@@ -3709,7 +3709,9 @@ msgid "manage color themes"
 msgstr "seznam položek polí"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3729,6 +3731,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "získat/nastavit téma kanálu"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6340,6 +6354,37 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: nemůžu parsovat soubor \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Volba \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sChyba: nemohu vytvořit soubor \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: nemůžu parsovat soubor \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sChyba aktualizace WeeChat se souborem \"%s\":"
@@ -26,7 +26,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:28+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <weechatter@arcor.de>\n"
@@ -4101,7 +4101,9 @@ msgid "manage color themes"
 msgstr "Verwalten von benutzerdefinierten Bar-Items"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -4128,6 +4130,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "raw[del]: delete a server"
+msgid "raw[del]: delete a user theme file"
+msgstr "raw[del]: entfernt einen Server"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -7182,6 +7196,40 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sDer Buffer-Name \"%s\" ist für WeeChat reserviert"
+
+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sDer Buffer-Name \"%s\" ist für WeeChat reserviert"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: Datei \"%s\" Analyse nicht möglich"
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Einstellung \"%s%s%s\":"
+
+#, fuzzy, c-format
+#| msgid "%sCannot create file \"%s\""
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sDie Datei \"%s\" kann nicht erstellt werden"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: Datei \"%s\" Analyse nicht möglich"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr ""
@@ -24,7 +24,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:46+0200\n"
 "Last-Translator: Santiago Forero <santiago@forero.xyz>\n"
 "Language-Team: Spanish <weechat-dev@nongnu.org>\n"
@@ -3801,7 +3801,9 @@ msgid "manage color themes"
 msgstr "lista de elementos de barra"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3821,6 +3823,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "ver/establecer el tema del canal"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6498,6 +6512,39 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sEl nombre del buffer \"%s\" está reservado por WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sEl nombre del buffer \"%s\" está reservado por WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: no es posible analizar el archivo \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Opción \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sError: no es posible crear el archivo \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: no es posible analizar el archivo \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sError al actualizar WeeChat con el archivo \"%s\":"
@@ -23,8 +23,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
-"PO-Revision-Date: 2026-07-04 16:05+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
+"PO-Revision-Date: 2026-07-04 17:00+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: French <flashcode@flashtux.org>\n"
 "Language: fr\n"
@@ -4026,8 +4026,12 @@ msgid "manage color themes"
 msgstr "gestion des thèmes de couleurs"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
-msgstr "[list [-backups]] || apply <nom> || info <nom>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
+msgstr ""
+"[list [-backups]] || apply <nom> || save <nom> [-full] || del <nom> || info "
+"<nom>"

 msgid ""
 "raw[list]: list registered themes and any *.theme files in the WeeChat "
@@ -4050,6 +4054,21 @@ msgstr ""
 "thème à la valeur du thème) ; si un fichier nommé <nom>.theme existe dans le "
 "répertoire \"themes\", il masque tout thème intégré du même nom"

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+"raw[save] : sauvegarder les options de thème dans un fichier <nom>.theme "
+"dans le répertoire \"themes\" ; par défaut seulement les options dont la "
+"valeur diffère de leur valeur par défaut sont écrites, utilisez \"-full\" "
+"pour écrire toutes les options ; le nom ne doit pas correspondre à un thème "
+"intégré ou démarrer par \"backup-\""
+
+msgid "raw[del]: delete a user theme file"
+msgstr "raw[del] : supprimer un fichier de thème utilisateur"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -7059,6 +7078,34 @@ msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""
 "État précédent sauvé sous le thème \"%s\" ; pour restaurer : /theme apply %s"

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sLe nom \"%s\" est réservé pour les sauvegardes automatiques"
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sLe nom \"%s\" est réservé pour un thème intégré"
+
+#, c-format
+msgid "%sFailed to save theme \"%s\""
+msgstr "%sÉchec de sauvegarde du thème \"%s\""
+
+#, c-format
+msgid "Theme saved: %s"
+msgstr "Thème sauvegardé : %s"
+
+#, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sImpossible de supprimer le thème intégré \"%s\""
+
+#, c-format
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%sImpossible de supprimer le thème \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr "Thème supprimé : %s"
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sErreur de mise à jour de WeeChat avec le fichier \"%s\" :"
@@ -18933,6 +18980,11 @@ msgstr ""
 "%s%s : impossible d'accepter de continuer le fichier \"%s\" (port : %d, "
 "position de départ : %llu) : xfer non trouvé ou non prêt pour le transfert"

+#~ msgid ""
+#~ "raw[delete]: delete a user theme file (refuses to delete built-in themes, "
+#~ "which have no file)"
+#~ msgstr "raw[delete] : supprimer un fichier thème de l'utilisateur"
+
 #~ msgid "No theme registered"
 #~ msgstr "Aucun thème enregistré"

@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-03-08 08:59+0100\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: Hungarian <weechat-dev@nongnu.org>\n"
@@ -3554,7 +3554,9 @@ msgid "manage color themes"
 msgstr "Aliaszok listája:\n"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3573,6 +3575,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "szoba témájának olvasása/módosítása"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6006,6 +6020,34 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+msgid "%sFailed to save theme \"%s\""
+msgstr "Nem sikerült a(z) \"%s\" naplófájlt írni\n"
+
+#, fuzzy, c-format
+msgid "Theme saved: %s"
+msgstr "Felhasználók a %s%s%s szobában: %s["
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%s nem sikerült a \"%s\" fájlt létrehozni\n"
+
+#, fuzzy, c-format
+msgid "%sFailed to delete theme \"%s\""
+msgstr "Nem sikerült a(z) \"%s\" naplófájlt írni\n"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, fuzzy, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "WeeChat frissítése...\n"
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-05-30 14:02+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: Italian <weechat-dev@nongnu.org>\n"
@@ -3732,7 +3732,9 @@ msgid "manage color themes"
 msgstr "elenco degli elementi barra"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3752,6 +3754,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "legge/modifica argomento del canale"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6486,6 +6500,37 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: impossibile analizzare il file \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Opzione \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sErrore: impossibile creare il file \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: impossibile analizzare il file \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sErrore durante l'aggiornamento di WeeChat con il file \"%s\":"
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-05-30 14:02+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <weechat-dev@nongnu.org>\n"
@@ -3817,7 +3817,9 @@ msgid "manage color themes"
 msgstr "バー要素のリスト"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3837,6 +3839,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "チャンネルトピックの取得/設定"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6662,6 +6676,37 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sエラー: \"%s\" は WeeChat の予約名です"
+
+#, fuzzy, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sエラー: \"%s\" は WeeChat の予約名です"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: ファイル \"%s\" を解析できません"
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "オプション \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sエラー: ファイル \"%s\" の作成に失敗"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: ファイル \"%s\" を解析できません"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sファイル \"%s\" で WeeChat のアップグレード中にエラー:"
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:55+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: Polish <soltys@soltys.info>\n"
@@ -3927,7 +3927,9 @@ msgid "manage color themes"
 msgstr "zarządza niestandardowymi elementami pasków"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3953,6 +3955,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "raw[del]: delete a server"
+msgid "raw[del]: delete a user theme file"
+msgstr "raw[del]: usuń serwer"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6843,6 +6857,40 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sNazwa bufora \"%s\" jest zarezerwowana dla WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sNazwa bufora \"%s\" jest zarezerwowana dla WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: nie można przetworzyć pliku \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Opcja \"%s%s%s\":"
+
+#, fuzzy, c-format
+#| msgid "%sCannot create file \"%s\""
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sNie można utworzyć pliku \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: nie można przetworzyć pliku \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sBłąd przy uaktualnianiu WeeChat z użyciem pliku \"%s\":"
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:48+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <weechat-dev@nongnu.org>\n"
@@ -3826,7 +3826,9 @@ msgid "manage color themes"
 msgstr "lista de itens da barra"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3846,6 +3848,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "obter/definir o tópico do canal"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6718,6 +6732,37 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: não foi possível analisar o ficheiro \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Opção \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sErro: não é possível criar o ficheiro \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: não foi possível analisar o ficheiro \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sErro ao atualizar o WeeChat com o ficheiro \"%s\":"
@@ -46,7 +46,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:49+0200\n"
 "Last-Translator: Érico Nogueira <ericonr@disroot.org>\n"
 "Language-Team: Portuguese (Brazil) <weechat-dev@nongnu.org>\n"
@@ -3746,7 +3746,9 @@ msgid "manage color themes"
 msgstr "lista de itens da barra"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3766,6 +3768,17 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+msgid "raw[del]: delete a user theme file"
+msgstr "lista de atalhos"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6385,6 +6398,37 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: não foi possível interpretar arquivo \"%s\""
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Opção \"%s%s%s\":"
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sErro: não foi possível criar arquivo \"%s\""
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: não foi possível interpretar arquivo \"%s\""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr ""
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-03-08 08:59+0100\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: Russian <weechat-dev@nongnu.org>\n"
@@ -3578,7 +3578,9 @@ msgid "manage color themes"
 msgstr "Список сокращений:\n"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3597,6 +3599,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "получить/установить тему канала"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6043,6 +6057,34 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, fuzzy, c-format
+msgid "%sFailed to save theme \"%s\""
+msgstr "Не могу записать лог-файл \"%s\"\n"
+
+#, fuzzy, c-format
+msgid "Theme saved: %s"
+msgstr "Ники %s%s%s: %s["
+
+#, fuzzy, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%s не могу создать файл \"%s\"\n"
+
+#, fuzzy, c-format
+msgid "%sFailed to delete theme \"%s\""
+msgstr "Не могу записать лог-файл \"%s\"\n"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, fuzzy, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "Обновляю WeeChat...\n"
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:52+0200\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: Serbian <ivan.pesic@gmail.com>\n"
@@ -3904,7 +3904,9 @@ msgid "manage color themes"
 msgstr "управљање прилагођеним ставкама траке"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3930,6 +3932,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "raw[del]: delete a server"
+msgid "raw[del]: delete a user theme file"
+msgstr "raw[del]: брисање сервера"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6825,6 +6839,40 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%sИме бафера „%s” је резервисано за програм WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%sИме бафера „%s” је резервисано за програм WeeChat"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: није успело парсирање фајла „%s”"
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "Опција „%s%s%s”:"
+
+#, fuzzy, c-format
+#| msgid "%sCannot create file \"%s\""
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%sНе може да се креира фајл „%s”"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: није успело парсирање фајла „%s”"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sГрешка приликом ажурирања програма WeeChat фајлом „%s”:"
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2026-06-28 08:53+0200\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: Turkish <emir_sari@icloud.com>\n"
@@ -3763,7 +3763,9 @@ msgid "manage color themes"
 msgstr "özel çubuk ögelerini yönet"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 #, fuzzy
@@ -3785,6 +3787,18 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+#, fuzzy
+#| msgid "get/set channel topic"
+msgid "raw[del]: delete a user theme file"
+msgstr "kanal konusunu al/ayarla"
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -6622,6 +6636,40 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr "%s\"%s\" arabellek adı WeeChat için ayrılmış"
+
+#, fuzzy, c-format
+#| msgid "%sBuffer name \"%s\" is reserved for WeeChat"
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr "%s\"%s\" arabellek adı WeeChat için ayrılmış"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to save theme \"%s\""
+msgstr "%s%s: \"%s\" dosyası ayrıştırılamıyor"
+
+#, fuzzy, c-format
+#| msgid "Option \"%s%s%s\":"
+msgid "Theme saved: %s"
+msgstr "\"%s%s%s\" seçeneği:"
+
+#, fuzzy, c-format
+#| msgid "%sCannot create file \"%s\""
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr "%s\"%s\" dosyası oluşturulamıyor"
+
+#, fuzzy, c-format
+#| msgid "%s%s: unable to parse file \"%s\""
+msgid "%sFailed to delete theme \"%s\""
+msgstr "%s%s: \"%s\" dosyası ayrıştırılamıyor"
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr "%sWeeChat'i \"%s\" dosyası ile yükseltirken hata:"
@@ -23,7 +23,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2026-07-04 16:03+0200\n"
+"POT-Creation-Date: 2026-07-04 17:00+0200\n"
 "PO-Revision-Date: 2014-08-16 10:27+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -3346,7 +3346,9 @@ msgid "manage color themes"
 msgstr ""

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated
-msgid "[list [-backups]] || apply <name> || info <name>"
+msgid ""
+"[list [-backups]] || apply <name> || save <name> [-full] || del <name> || "
+"info <name>"
 msgstr ""

 msgid ""
@@ -3364,6 +3366,16 @@ msgid ""
 "shadows any built-in theme of the same name"
 msgstr ""

+msgid ""
+"raw[save]: save current themable options to a file <name>.theme in directory "
+"\"themes\"; by default only options whose value differs from their default "
+"are written, use \"-full\" to write every themable option; the name must not "
+"match a built-in theme or start with \"backup-\""
+msgstr ""
+
+msgid "raw[del]: delete a user theme file"
+msgstr ""
+
 msgid ""
 "raw[info]: display details on a theme (name, description, creation date, "
 "WeeChat version, number of option overrides)"
@@ -5603,6 +5615,34 @@ msgstr ""
 msgid "Previous state saved as theme \"%s\"; to restore: /theme apply %s"
 msgstr ""

+#, c-format
+msgid "%sName \"%s\" is reserved for automatic backups"
+msgstr ""
+
+#, c-format
+msgid "%sName \"%s\" is reserved for a built-in theme"
+msgstr ""
+
+#, c-format
+msgid "%sFailed to save theme \"%s\""
+msgstr ""
+
+#, c-format
+msgid "Theme saved: %s"
+msgstr ""
+
+#, c-format
+msgid "%sCannot delete built-in theme \"%s\""
+msgstr ""
+
+#, c-format
+msgid "%sFailed to delete theme \"%s\""
+msgstr ""
+
+#, c-format
+msgid "Theme deleted: %s"
+msgstr ""
+
 #, c-format
 msgid "%sError upgrading WeeChat with file \"%s\":"
 msgstr ""
@@ -7339,6 +7339,23 @@ COMMAND_CALLBACK(theme)
        return theme_apply (argv[2]);
    }

+    /* "/theme save <name> [-full]": write a user theme file */
+    if (string_strcmp (argv[1], "save") == 0)
+    {
+        COMMAND_MIN_ARGS(3, "save");
+        return theme_save (argv[2],
+                           ((argc >= 4)
+                            && (string_strcmp (argv[3], "-full") == 0))
+                           ? 1 : 0);
+    }
+
+    /* "/theme del <name>": remove a user theme file */
+    if (string_strcmp (argv[1], "del") == 0)
+    {
+        COMMAND_MIN_ARGS(3, "del");
+        return theme_delete (argv[2]);
+    }
+
    /* "/theme info <name>": show details about a theme */
    if (string_strcmp (argv[1], "info") == 0)
    {
@@ -10063,6 +10080,8 @@ command_init (void)
        /* TRANSLATORS: only text between angle brackets (eg: "<name>") may be translated */
        N_("[list [-backups]]"
           " || apply <name>"
+           " || save <name> [-full]"
+           " || del <name>"
           " || info <name>"),
        CMD_ARGS_DESC(
            N_("raw[list]: list registered themes and any *.theme files in "
@@ -10073,6 +10092,13 @@ command_init (void)
               "value from the theme); if a file named <name>.theme "
               "exists in directory \"themes\" it shadows any built-in "
               "theme of the same name"),
+            N_("raw[save]: save current themable options to a file "
+               "<name>.theme in directory \"themes\"; by default only "
+               "options whose value differs from their default are "
+               "written, use \"-full\" to write every themable option; "
+               "the name must not match a built-in theme or start with "
+               "\"backup-\""),
+            N_("raw[del]: delete a user theme file"),
            N_("raw[info]: display details on a theme (name, description, "
               "creation date, WeeChat version, number of option overrides)"),
            N_("name: name of a theme"),
@@ -10089,6 +10115,8 @@ command_init (void)
               "This is controlled by the option weechat.look.theme_backup.")),
        "list -backups"
        " || apply"
+        " || save -full"
+        " || del"
        " || info",
        &command_theme, NULL, NULL);
    hook_command (
@@ -312,12 +312,16 @@ theme_make_backup_name (void)
 }

 /*
- * Write a full snapshot of every themable option to a .theme file at
+ * Write a snapshot of themable options to a .theme file at
 * "<weechat_config_dir>/themes/<name>.theme".
 *
 * The themes directory is created if missing. The file contains an
 * [info] section (name, description, date, weechat version) followed by
- * an [options] section listing every themable option's current value.
+ * an [options] section.
+ *
+ * If "diff_only" is non-zero, only options whose value differs from
+ * their default (config_file_option_has_changed) are written. If zero,
+ * every themable option is written (full snapshot).
 *
 * Return:
 *   1: success
@@ -325,7 +329,7 @@ theme_make_backup_name (void)
 */

 int
-theme_write_file_full (const char *name, const char *description)
+theme_write_file (const char *name, const char *description, int diff_only)
 {
    char *path, *dir, *value, *now;
    FILE *file;
@@ -374,6 +378,8 @@ theme_write_file_full (const char *name, const char *description)
            {
                if (!ptr_option->themable)
                    continue;
+                if (diff_only && !config_file_option_has_changed (ptr_option))
+                    continue;
                value = config_file_option_value_to_string (
                    ptr_option, 0, 0, 1);
                fprintf (file, "%s.%s.%s = %s\n",
@@ -405,9 +411,10 @@ theme_make_backup (void)
    name = theme_make_backup_name ();
    if (!name)
        return NULL;
-    if (!theme_write_file_full (
+    if (!theme_write_file (
            name,
-            _("Automatic backup written before /theme apply")))
+            _("Automatic backup written before /theme apply"),
+            0))  /* full snapshot: backups must round-trip exactly */
    {
        free (name);
        return NULL;
@@ -785,6 +792,105 @@ theme_apply (const char *name)
    return WEECHAT_RC_OK;
 }

+/*
+ * Save the current themable options to a user theme file.
+ *
+ * Refuse names that match a built-in theme (registered via API) or
+ * that start with "backup-" (reserved for automatic backups). If
+ * "full" is non-zero, every themable option is written; otherwise
+ * only options whose value differs from their default are written.
+ *
+ * Return WEECHAT_RC_OK on success, WEECHAT_RC_ERROR on validation or
+ * I/O failure.
+ */
+
+int
+theme_save (const char *name, int full)
+{
+    if (!name || !name[0])
+        return WEECHAT_RC_ERROR;
+
+    if (strncmp (name, "backup-", 7) == 0)
+    {
+        gui_chat_printf (
+            NULL,
+            _("%sName \"%s\" is reserved for automatic backups"),
+            gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+            name);
+        return WEECHAT_RC_ERROR;
+    }
+
+    if (theme_search (name))
+    {
+        gui_chat_printf (
+            NULL,
+            _("%sName \"%s\" is reserved for a built-in theme"),
+            gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+            name);
+        return WEECHAT_RC_ERROR;
+    }
+
+    if (!theme_write_file (name, NULL, (full) ? 0 : 1))
+    {
+        gui_chat_printf (NULL,
+                         _("%sFailed to save theme \"%s\""),
+                         gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+                         name);
+        return WEECHAT_RC_ERROR;
+    }
+
+    gui_chat_printf (NULL,
+                     _("Theme saved: %s"),
+                     name);
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * Delete a user theme file.
+ *
+ * Refuse names registered as built-in themes (they have no file).
+ * Return WEECHAT_RC_OK on success, WEECHAT_RC_ERROR otherwise.
+ */
+
+int
+theme_delete (const char *name)
+{
+    char *path;
+
+    if (!name || !name[0])
+        return WEECHAT_RC_ERROR;
+
+    if (theme_search (name))
+    {
+        gui_chat_printf (
+            NULL,
+            _("%sCannot delete built-in theme \"%s\""),
+            gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+            name);
+        return WEECHAT_RC_ERROR;
+    }
+
+    path = theme_user_file_path (name);
+    if (!path)
+        return WEECHAT_RC_ERROR;
+
+    if (unlink (path) != 0)
+    {
+        gui_chat_printf (NULL,
+                         _("%sFailed to delete theme \"%s\""),
+                         gui_chat_prefix[GUI_CHAT_PREFIX_ERROR],
+                         name);
+        free (path);
+        return WEECHAT_RC_ERROR;
+    }
+
+    gui_chat_printf (NULL,
+                     _("Theme deleted: %s"),
+                     name);
+    free (path);
+    return WEECHAT_RC_OK;
+}
+
 /*
 * Initialize the theme subsystem.
 *
@@ -45,6 +45,8 @@ extern struct t_theme *theme_register (const char *name,
                                       struct t_hashtable *overrides);
 extern struct t_arraylist *theme_list (void);
 extern int theme_apply (const char *name);
+extern int theme_save (const char *name, int full);
+extern int theme_delete (const char *name);
 extern char *theme_make_backup (void);
 extern char *theme_user_file_path (const char *name);
 extern struct t_theme *theme_file_parse (const char *path);
@@ -47,7 +47,8 @@ extern struct t_theme *theme_alloc (const char *name);
 extern void theme_free (struct t_theme *theme);
 extern char *theme_user_file_path (const char *name);
 extern char *theme_make_backup_name (void);
-extern int theme_write_file_full (const char *name, const char *description);
+extern int theme_write_file (const char *name, const char *description,
+                             int diff_only);
 extern char *theme_file_strip_quotes (char *value);
 extern struct t_theme *theme_file_parse (const char *path);
 }
@@ -330,23 +331,24 @@ TEST(CoreTheme, MakeBackupName)

 /*
 * Test functions:
- *   theme_write_file_full
+ *   theme_write_file
 */

-TEST(CoreTheme, WriteFileFull)
+TEST(CoreTheme, WriteFile)
 {
    char *path, line[8192];
    FILE *file;
    int saw_info, saw_name, saw_description, saw_date, saw_weechat;
    int saw_options_section, saw_an_option;
    int saw_color_code, saw_string_option, string_option_quoted;
+    int full_options, diff_options;

    /* refuse empty/NULL */
-    LONGS_EQUAL(0, theme_write_file_full (NULL, NULL));
-    LONGS_EQUAL(0, theme_write_file_full ("", NULL));
+    LONGS_EQUAL(0, theme_write_file (NULL, NULL, 0));
+    LONGS_EQUAL(0, theme_write_file ("", NULL, 0));

-    /* write a valid file */
-    LONGS_EQUAL(1, theme_write_file_full ("test_wrt", "a description"));
+    /* full snapshot: every themable option is written */
+    LONGS_EQUAL(1, theme_write_file ("test_wrt", "a description", 0));

    path = theme_user_file_path ("test_wrt");
    CHECK(path != NULL);
@@ -357,6 +359,7 @@ TEST(CoreTheme, WriteFileFull)
    saw_info = saw_name = saw_description = saw_date = saw_weechat = 0;
    saw_options_section = saw_an_option = 0;
    saw_color_code = saw_string_option = string_option_quoted = 0;
+    full_options = 0;
    while (fgets (line, sizeof (line) - 1, file))
    {
        if (strncmp (line, "[info]", 6) == 0)
@@ -376,6 +379,7 @@ TEST(CoreTheme, WriteFileFull)
                 && (strchr (line, '.') != NULL))
        {
            saw_an_option = 1;
+            full_options++;
            /*
             * values must be stored verbatim: no WeeChat color code
             * (byte 0x19) may leak into the file
@@ -404,6 +408,30 @@ TEST(CoreTheme, WriteFileFull)
    /* the string option was found and its value is quoted */
    LONGS_EQUAL(1, saw_string_option);
    LONGS_EQUAL(1, string_option_quoted);
+    CHECK(full_options > 10);  /* core has many themable options */
+
+    unlink (path);
+
+    /* diff-only snapshot in a freshly initialized config writes very
+       few (typically zero) [options] entries — never more than the
+       full snapshot */
+    LONGS_EQUAL(1, theme_write_file ("test_wrt", NULL, 1));
+
+    file = fopen (path, "r");
+    CHECK(file != NULL);
+    diff_options = 0;
+    saw_options_section = 0;
+    while (fgets (line, sizeof (line) - 1, file))
+    {
+        if (strncmp (line, "[options]", 9) == 0)
+            saw_options_section = 1;
+        else if (saw_options_section
+                 && (strchr (line, '=') != NULL)
+                 && (strchr (line, '.') != NULL))
+            diff_options++;
+    }
+    fclose (file);
+    CHECK(diff_options < full_options);

    unlink (path);
    free (path);
@@ -640,6 +668,80 @@ TEST(CoreTheme, FileParse)
    unlink (path);
 }

+/*
+ * Test functions:
+ *   theme_save
+ */
+
+TEST(CoreTheme, Save)
+{
+    char *path;
+    struct stat st;
+
+    /* NULL / empty => error, no file */
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save (NULL, 0));
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save ("", 0));
+
+    /* reserved "backup-" prefix => error */
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save ("backup-anything", 0));
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save ("backup-anything", 1));
+
+    /* name colliding with a built-in is refused */
+    theme_register ("dark", NULL);
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save ("dark", 0));
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_save ("dark", 1));
+
+    /* happy path: sparse save => file exists */
+    LONGS_EQUAL(WEECHAT_RC_OK, theme_save ("save_test", 0));
+    path = theme_user_file_path ("save_test");
+    CHECK(path != NULL);
+    LONGS_EQUAL(0, stat (path, &st));
+    unlink (path);
+    free (path);
+
+    /* happy path: full snapshot => file exists, bigger than sparse */
+    LONGS_EQUAL(WEECHAT_RC_OK, theme_save ("save_test", 1));
+    path = theme_user_file_path ("save_test");
+    CHECK(path != NULL);
+    LONGS_EQUAL(0, stat (path, &st));
+    CHECK(st.st_size > 0);
+    unlink (path);
+    free (path);
+}
+
+/*
+ * Test functions:
+ *   theme_delete
+ */
+
+TEST(CoreTheme, Delete)
+{
+    char *path;
+    struct stat st;
+
+    /* NULL / empty => error */
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_delete (NULL));
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_delete (""));
+
+    /* refuses to delete a built-in (no file to delete) */
+    theme_register ("dark", NULL);
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_delete ("dark"));
+
+    /* missing file => error */
+    LONGS_EQUAL(WEECHAT_RC_ERROR, theme_delete ("does_not_exist"));
+
+    /* happy path: write a file via theme_save (also ensures the themes
+       directory exists), delete it, confirm it is gone */
+    LONGS_EQUAL(WEECHAT_RC_OK, theme_save ("del_test", 0));
+    path = theme_user_file_path ("del_test");
+    CHECK(path != NULL);
+    LONGS_EQUAL(0, stat (path, &st));
+
+    LONGS_EQUAL(WEECHAT_RC_OK, theme_delete ("del_test"));
+    LONGS_EQUAL(-1, stat (path, &st));
+    free (path);
+}
+
 /*
 * Test functions:
 *   theme_init