Hi Kamil,
Thanks for the feedback.
Kamil, the most appropriate and recommended way to check the code standard of any WordPress theme is the “Theme Check Plugin” by otto. You may install it to check the code health of any theme.
DesignOrbital also participates to the WordPress.org in the form of free wordpress themes and theme reviews. So, we are very sensitive to keep our themes according to WordPress standards. Our premium wordpress themes also follow the same strict rules to deliver the quality themes to our users.
Once again thanks for your time and feedback.
Take Care