[Plugin: Custom Admin Branding] WP Content Directory URL

Instead of using hard-coded references to the WP Content directory you should be using the WP_PLUGIN_URL constant.

$options['login_logo'] = WP_PLUGIN_URL . '/custom-admin-branding/images/login-logo.png';
$options['login_button_background'] = WP_PLUGIN_URL . '/custom-admin-branding/images/button-grad.png';
$options['admin_header_logo'] = WP_PLUGIN_URL . '/custom-admin-branding/images/header-logo.png';
$options['admin_footer_logo'] = WP_PLUGIN_URL . '/custom-admin-branding/images/footer-logo.png';

<script type="text/javascript" src="<?php echo WP_PLUGIN_URL; ?>/custom-admin-branding/js/ColorPicker.js"></script>

http://ww.wp.xz.cn/extend/plugins/custom-admin-branding/