Templates for cart?

Yes, there are. See: https://docs.joedolson.com/my-tickets/2014/12/01/templating/

Sorry; I misunderstood. No, there are no templates for the cart and checkout process; only for tickets, receipts, and other post-purchase pages.

yeah, that’s what I found, didn’t know if I was looking at the right thing. I guess I’ll do what I can via css.

A few things, just as suggestions, you might look at in future versions:
1. making the cart/checkout/tickets form pages as templates

2. adding buy now capabilities (preferably a shortcode) – I made a hidden form on the page to accomplish this, it could be done better

3. Make it when someone adds to cart, it tallies (so, +1 for buy it now) the quantities

4. custom css in plugin settings

It’s a good plugin, I like it, nice and simple, but with a few tweaks it could be excellent.