Is it possible/advisable to use a Drupal 7 theme on a Drupal 8 installation?
I'm starting my first Drupal 8 project. Generally, I hit up a place like ThemeForest for a theme, but their D8 theme selection is depressingly slim. Can I use a (highly rated and actively maintained) D7 theme instead? Is there a better place to look for professionally built D8 themes?