Add a single new entry point to the plugin API:
struct t_theme *weechat_theme_register (const char *name,
struct t_hashtable *overrides);
Plugins call this at init time to contribute their per-theme color (or
other themable) overrides for a built-in theme like "dark". The
overrides hashtable maps full option names ("irc.color.input_nick") to
their string values; the caller retains ownership and may free it
right after the call. Repeated calls with the same theme name merge
into the existing registry entry, so each plugin can declare its own
contributions independently of core and of other plugins.
Wiring:
- struct t_theme forward-declared in weechat-plugin.h alongside the
other opaque types.
- theme_register function pointer added to t_weechat_plugin.
- weechat_theme_register convenience macro added.
- plugin.c initializes the pointer to core's theme_register.
- WEECHAT_PLUGIN_API_VERSION bumped to 20260526-01.
This commit is plumbing only: the underlying theme_register function
already has unit-test coverage in tests/unit/core/test-core-theme.cpp
(TEST(CoreTheme, Register)), so no new tests are added here.
WeeChat
WeeChat (Wee Enhanced Environment for Chat) is a free chat client, fast and light, designed for many operating systems.
It is highly customizable and extensible with scripts.
Homepage: https://weechat.org/
Features
- Modular chat client: WeeChat has a lightweight core and optional plugins. All plugins (including IRC) are independent and can be unloaded.
- Multi-platform: WeeChat runs on GNU/Linux, *BSD, GNU/Hurd, Haiku, macOS and Windows (WSL and Cygwin).
- Multi-protocol: WeeChat is designed to support multiple protocols via plugins, like IRC.
- Standards-compliant: the IRC plugin is compliant with RFCs 1459, 2810, 2811, 2812, 2813 and 7194.
- Small, fast, and very light: the core is and should stay as light and fast as possible.
- Customizable and extensible: there are a lot of options to customize WeeChat, and it is extensible with C plugins and scripts (Perl, Python, Ruby, Lua, Tcl, Scheme, JavaScript and PHP).
- Fully documented: there is comprehensive documentation, which is translated into several languages.
- Developed from scratch: WeeChat was built from scratch and is not based on any other client.
- Free software: WeeChat is released under GPLv3.
On WeeChat's website you can find more screenshots.
Installation
WeeChat can be installed using your favorite package manager (recommended) or by compiling it yourself.
For detailed instructions, please check the WeeChat user's guide.
Semantic versioning
WeeChat follows "practical" semantic versioning; see CONTRIBUTING.md.
Copyright
Copyright © 2003-2026 Sébastien Helleu
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/.

