Events Calender Appearance

Hey, just a quick question…I’m using the theme found in the demo link below, in it you’ll notice that the Events Calendar is Red, white, and blue…I want to do that on my page since I’m using the exact same theme, am I correct in assuming that, that is a feature that I need to purchase the pro version for?
http://politics.cmsmasters.net/
Thanks! -V

https://ww.wp.xz.cn/plugins/the-events-calendar/