diff --git a/src/plugins/script/CMakeLists.txt b/src/plugins/script/CMakeLists.txt
index baee1846d..088937aad 100644
--- a/src/plugins/script/CMakeLists.txt
+++ b/src/plugins/script/CMakeLists.txt
@@ -29,6 +29,7 @@ add_library(script MODULE
   script-info.c script-info.h
   script-mouse.c script-mouse.h
   script-repo.c script-repo.h
+  script-theme.c script-theme.h
 )
 set_target_properties(script PROPERTIES PREFIX "")
 
diff --git a/src/plugins/script/script-theme.c b/src/plugins/script/script-theme.c
new file mode 100644
index 000000000..dc9d5753d
--- /dev/null
+++ b/src/plugins/script/script-theme.c
@@ -0,0 +1,92 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/* script contribution to built-in themes. */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <stddef.h>
+
+#include "../weechat-plugin.h"
+#include "script.h"
+#include "script-theme.h"
+
+
+const char *script_theme_light[][2] =
+{
+    { "script.color.status_autoloaded",         "default" },
+    { "script.color.status_held",               "202" },
+    { "script.color.status_installed",          "21" },
+    { "script.color.status_obsolete",           "magenta" },
+    { "script.color.status_popular",            "94" },
+    { "script.color.status_running",            "23" },
+    { "script.color.status_unknown",            "red" },
+    { "script.color.text_bg_selected",          "117" },
+    { "script.color.text_date",                 "darkgray" },
+    { "script.color.text_date_selected",        "darkgray" },
+    { "script.color.text_delimiters",           "251" },
+    { "script.color.text_description",          "default" },
+    { "script.color.text_description_selected", "default" },
+    { "script.color.text_extension",            "lightblue" },
+    { "script.color.text_extension_selected",   "lightblue" },
+    { "script.color.text_name",                 "18" },
+    { "script.color.text_name_selected",        "18" },
+    { "script.color.text_selected",             "default" },
+    { "script.color.text_tags",                 "94" },
+    { "script.color.text_tags_selected",        "94" },
+    { "script.color.text_version",              "58" },
+    { "script.color.text_version_loaded",       "default" },
+    { "script.color.text_version_loaded_selected", "default" },
+    { "script.color.text_version_selected",     "58" },
+    { NULL,                                     NULL },
+};
+
+void
+script_theme_register (const char *name, const char *entries[][2])
+{
+    struct t_hashtable *overrides;
+    int i;
+
+    if (!name || !entries)
+        return;
+
+    overrides = weechat_hashtable_new (32,
+                                       WEECHAT_HASHTABLE_STRING,
+                                       WEECHAT_HASHTABLE_STRING,
+                                       NULL, NULL);
+    if (!overrides)
+        return;
+
+    for (i = 0; entries[i][0]; i++)
+        weechat_hashtable_set (overrides, entries[i][0], entries[i][1]);
+
+    weechat_theme_register (name, overrides);
+
+    weechat_hashtable_free (overrides);
+}
+
+void
+script_theme_init (void)
+{
+    script_theme_register ("light", script_theme_light);
+}
diff --git a/src/plugins/script/script-theme.h b/src/plugins/script/script-theme.h
new file mode 100644
index 000000000..59563a0f8
--- /dev/null
+++ b/src/plugins/script/script-theme.h
@@ -0,0 +1,27 @@
+/*
+ * SPDX-FileCopyrightText: 2026 Sébastien Helleu <flashcode@flashtux.org>
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ * This file is part of WeeChat, the extensible chat client.
+ *
+ * WeeChat is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * WeeChat is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with WeeChat.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#ifndef WEECHAT_PLUGIN_SCRIPT_THEME_H
+#define WEECHAT_PLUGIN_SCRIPT_THEME_H
+
+extern void script_theme_init (void);
+
+#endif /* WEECHAT_PLUGIN_SCRIPT_THEME_H */
diff --git a/src/plugins/script/script.c b/src/plugins/script/script.c
index eeed523b1..d94eb31aa 100644
--- a/src/plugins/script/script.c
+++ b/src/plugins/script/script.c
@@ -37,6 +37,7 @@
 #include "script-info.h"
 #include "script-mouse.h"
 #include "script-repo.h"
+#include "script-theme.h"
 
 
 WEECHAT_PLUGIN_NAME(SCRIPT_PLUGIN_NAME);
@@ -352,6 +353,8 @@ weechat_plugin_init (struct t_weechat_plugin *plugin, int argc, char *argv[])
 
     script_config_read ();
 
+    script_theme_init ();
+
     weechat_mkdir_home ("${weechat_cache_dir}/" SCRIPT_PLUGIN_NAME, 0755);
 
     script_command_init ();