Hello,
I’m sorry that you’re running into some styling issues with the Filter Bar! There are a few things that I would recommend…
First, there are some styles that you can change under Appearance > Customize > The Events Calendar. You can also try adjusting the “Default stylesheet used for events templates” and “Events template” settings under Events > Settings > Display. These affect how much events pages inherit their styling from the theme.
If you need to add some custom CSS, then you can do so under the Appearance > Customize > Additional CSS area (if you have one) or to the style.css file of your child theme.
For more advanced changes, you can also do a template override. The templates for Filter Bar can be found at wp-content/plugins/the-events-calendar-filter-bar/src/views/filter-bar.
We are limited in the amount of support that we can provide for customizations, but if you get stuck or have any questions, please let me know – I’ll be happy to try to point you in the right direction!
Thanks,
Jennifer