They are theme language strings, so edit the language pack in the UI or create an '/lang/es/theme_adaptable.php' file in the theme. The strings are:
$string['tabbedlayouttablabelcourse'] = 'Course content'; $string['tabbedlayouttablabelcourse1'] = 'Tab 1'; $string['tabbedlayouttablabelcourse2'] = 'Tab 2'; $string['tabbedlayouttablabeldashboard'] = 'Dashboard content'; $string['tabbedlayouttablabeldashboard1'] = 'Tab 1'; $string['tabbedlayouttablabeldashboard2'] = 'Tab 2';