To render a template use the function *getMarkupTemplate* to load the template and *replaceMacros* to replace the macros/variables in the just loaded template file.
- $tpl = get_markup_template('install_settings.tpl');
+ $tpl = Renderer::getMarkupTemplate('install_settings.tpl');
$o .= Renderer::replaceMacros($tpl, array( ... ));
the array consists of an association of an identifier and the value for that identifier, i.e.