Hey Simon,
It’s good to hear from you again! Hope you’ve been well! I’m happy to help dig into your event Woo tickets styling.
This snippet should allow you to customize the ticket container including the background color and padding:
https://gist.github.com/jamigibbs/0bdf288885d7e5e43729
Customizing the other colors and fonts will require a little more poking around with an element inspector like Firebug (with Firefox). Or if you’re using Chrome, right click on your page and select “Inspect Element” to identify the CSS for them.
But to get you further started, this should allow you to change the color of the “Add to Cart” button:
https://gist.github.com/jamigibbs/9a267cc274ca7f9c05f3
The original styles for the button are located in the WooCommerce plugin at:
/plugins/woocommerce/assets/css/woocommerce.css
I hope that helps! Let me know if you have any other questions.
Kind Regards,
Jami