Lexer->addSpecialPattern('~~DARKMODE~~', $mode, 'plugin_darkmodetoggle_button'); } public function handle($match, $state, $pos, Doku_Handler $handler) { return ['type' => 'darkmode_button']; } public function render($mode, Doku_Renderer $renderer, $data) { if ($mode !== 'xhtml') return false; if ($data['type'] === 'darkmode_button') { $renderer->doc .= '🌙'; } return true; } }