I am working on developing a simple WP theme that our office will use as a starting point for any future projects that come in. My question is this: How would I go about adding functionality that would allow for the user to select from several different pre-built header styles using the native WP Customizer panel? I have seen similar functionality in several popular themes (Linstar, BeTheme, etc.) in their Theme Options panel, and I know that they have created multiple header.php files (header-1.php, header-2.php, etc.), but I was wondering if and how this might be accomplished using the WP Customizer panel. Any help is appreciated.
Do you want this to be an option per page? Or side wide.
If first, look into this: https://www.advancedcustomfields.com/ If second, look into this: https://blog.templatetoaster.com/wordpress-settings-api-creating-theme-options/