You can adjust certain options for nearly every WPBakery Page Builder element or shortcode using that element’s settings; for example change the color or font size, etc.
However, with certain themes you can also adjust the global options for a specific number of elements, like Accordions & Toggles, Buttons, CTA and others.
As depicted on the image above, you can access the global settings for a certain number of elements through Theme Options > Elements, and these settings will apply to all the pages where you decide to include the said element - provided that you have not changed the colors in the settings of that individual element as well.
This means that the global element settings will apply at all times, unless you override them with the settings inside a specific individual element (shortcode) – local settings always override the global options.