Hi Joseph, the examples in those screenshots are native WordPress themes. Event Espresso is compatible with themes that follow WordPress theme standards.
I’m not familiar with the theme that you linked to — however, you could duplicate your site onto a testing site and then test out the theme with Event Espresso 4:
The support post ‘Upgrade to EE4 and Theme compatibility’ is closed to new replies.
Have a question about this support post? Create a new support post in our support forums and include a link to this existing support post so we can help you.
Support forum for Event Espresso 3 and Event Espresso 4.