How can I change the default/primary color to the one of the site?

The following custom CSS will change the color of the button in your screen shot:

.em.pixelbones .input button.button-primary {
    color: black !important;
    background-color: white !important;
    border-color: black !important;
} 

You could go to Events Manager settings in the General tab select “Styling Options (Advanced)” and then set “Enable Theme Styling” to No. This will prevent the theme styles from getting overridden. You may have to add some additional CSS to get the event pages to have the colors you want.

You can see more about these settings here: https://wp-events-plugin.com/documentation/v6-migration/

• This reply was modified 2 months ago by joneiseman.

Thanks a lot!