### Godot version

4.x

### System information

Windows 10

### Issue description

The `Search Result` panel is not correctly updated when changing the theme.

https://user-images.githubusercontent.com/66004280/208964493-d0423b78-3418-44c9-95ed-822fd34c4720.mp4



### Steps to reproduce

1. Search something
2. Change the theme

### Minimal reproduction project

--
return _replace_line_edit->get_text();
}
void FindInFilesPanel::update_replace_buttons() {
	bool disabled = _finder->is_searching();
	_replace_all_button->set_disabled(disabled);
}
void FindInFilesPanel::set_progress_visible(bool p_visible) {
	_progress_bar->set_self_modulate(Color(1, 1, 1, p_visible ? 1 : 0));
}
void FindInFilesPanel::_bind_methods() {
	ClassDB::bind_method("_on_result_found", &FindInFilesPanel::_on_result_found);
	ClassDB::bind_method("_on_finished", &FindInFilesPanel::_on_finished);
	ClassDB::bind_method("_draw_result_text", &FindInFilesPanel::draw_result_text);
	ADD_SIGNAL(MethodInfo(SIGNAL_RESULT_SELECTED,
			PropertyInfo(Variant::STRING, "path"),
			PropertyInfo(Variant::INT, "line_number"),
			PropertyInfo(Variant::INT, "begin"),
			PropertyInfo(Variant::INT, "end")));
	ADD_SIGNAL(MethodInfo(SIGNAL_FILES_MODIFIED, PropertyInfo(Variant::STRING, "paths")));
}