Portfolio settings can be found below the post editor on Portfolio pages:
These settings are used when the portfolio is being used inside a portfolio listing page, meaning its being displayed using a WPBakery Page Builder Element.
For example, the portfolio on the right uses a Light Title Color with a semi-transparent Main Color.
Attributes are info you would like to display in a structured format. To display them, simply use the Page Builder element with the same name:
Header settings allow you to override the global header settings such as the spacing above the content and if you would like to display the light or the dark header.
These settings allow you to change the overall page layout: