1.Go to Appearance -> Installplugins and activate the Js_composer and templatera plugin
Incase if you find any difficulty in activating the plugin by the above method-In agile folder pls go to framework/plugins there you will find Js_composer.zip and templatera.zip file.Install the same by going to plugins->Add new option in WP-admin panel.
2.Go to Appearance -> Themeoptions ,In General tab there is an option to set the skin color of the theme under the heading “Custom color for the skin”