The BigCommerce tab in Customizer
If you have the BigCommerce plugin for WordPress installed, you'll see a BigCommerce tab in the WordPress Customizer.
These settings are controlled by the BigCommerce plugin. See the Big Commerce plugin documentation for the Customizer settings for more information about the settings on this tab.
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If you set a custom global button style for Beaver Builder in Customizer > General > Buttons, it will override the custom button color and button text color set in Customizer > BigCommerce > Color & Theme.