_color_save_stylesheet($file, $style, &$paths)
Saves the rewritten stylesheet to disk.
File
core/modules/color/color.module, line 582 Allows users to change the color scheme of themes.
Code
function _color_save_stylesheet($file, $style, &$paths) {
$filepath = file_unmanaged_save_data($style, $file, FILE_EXISTS_REPLACE);
$paths['files'][] = $filepath;
// Set standard file permissions for webserver-generated files.
drupal_chmod($file);
}