ADDED: Empty light theme file.

Author: JanWielemaker

library/theme/light.pl

@@ -0,0 +1,45 @@
+/*  Part of SWI-Prolog
+
+    Author:        Jan Wielemaker
+    E-mail:        jan@swi-prolog.org
+    WWW:           http://www.swi-prolog.org
+    Copyright (c)  2025, SWI-Prolog Solutions b.v.
+    All rights reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions
+    are met:
+
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in
+       the documentation and/or other materials provided with the
+       distribution.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+    "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+    LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+    FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+    COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+    INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+    BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+    CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+    LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+    ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+*/
+
+:- module(prolog_theme_light, []).
+
+/** <module> SWI-Prolog theme file -- light
+
+The `light` theme is default, so this is an empty file.
+*/
+
+:- multifile
+    prolog:theme/1.
+
+prolog:theme(light).                             % make ourselves known

src/CMakeLists.txt

@@ -202,7 +202,7 @@ endif()
 set(SWIPL_DATA_library_lynx format.pl html_style.pl html_text.pl
     pldoc_style.pl)
 
-set(SWIPL_DATA_library_theme auto.pl dark.pl)
+set(SWIPL_DATA_library_theme auto.pl dark.pl light.pl)
 
 set(SWIPL_DATA_library_iri_scheme file.pl)