gistfile1.txt

	/**
	 * Initializes signature settings form.
	 */
	private function _initSignatureSettingsForm($return = false)
	{
		global $txt;

		$config_vars = array(
				// Are signatures even enabled?
				array('check', 'signature_enable'),
			'',
				// Tweaking settings!
				array('int', 'signature_max_length', 'subtext' => $txt['zero_for_no_limit']),
				array('int', 'signature_max_lines', 'subtext' => $txt['zero_for_no_limit']),
				array('int', 'signature_max_font_size', 'subtext' => $txt['zero_for_no_limit']),
				array('check', 'signature_allow_smileys', 'onclick' => 'document.getElementById(\'signature_max_smileys\').disabled = !this.checked;'),
				array('int', 'signature_max_smileys', 'subtext' => $txt['zero_for_no_limit']),
			'',
				// Image settings.
				array('int', 'signature_max_images', 'subtext' => $txt['signature_max_images_note']),
				array('int', 'signature_max_image_width', 'subtext' => $txt['zero_for_no_limit']),
				array('int', 'signature_max_image_height', 'subtext' => $txt['zero_for_no_limit']),
			'',
				array('bbc', 'signature_bbc'),
		);

		call_integration_hook('integrate_signature_settings', array(&$config_vars));

		if ($return)
			return $config_vars;

		// we're working with them settings.
		require_once(SUBSDIR . '/Settings.class.php');

		// instantiate the form
		$this->_signatureSettings = new Settings_Form();

		return $this->_signatureSettings->settings($config_vars);
	}

[...]

	/**
	 * Return signature settings.
	 * Used in admin center search.
	 */
	public function signatureSettings()
	{
		return $this->_initSignatureSettingsForm(true);
	}

Yes, I understand the temptation. :) I have preferred not to do this, even though for many it's possible right now: I am changing the internal implementation of _initSignatureSettingsForm(), and I'd prefer to not affect anything else.