I created my own theme in Drupal 7. It is not sub-theme. Simple I created a folder at sites/all/themes/my_foundation, a template.info as usual, then an empty page.tpl.php.
I expected that a blank white page is obtained after enabling the new theme and visiting the home page. However, I have got a page with some contents as screenshot:
I need to know how it was occurred and how could I get the expected behavior?