/**
 * Set a new instance of the theme that implements Themes interface.
 *
 * @param ThemeInterface $theme Theme interface.
 *
 * @return void
 *
 * @access public
 */
public static function setTheme(ThemeInterface $theme): void

Examples

use function Thermage\heading;
use function Thermage\render;

// ...

heading()::setTheme(new RadTheme());