In regards to the individual Page Settings as well as Global Settings
First off the page settings need to be opened directly in the Elementor left sidebar of each individual page.

The following could be set through the

1. Global Settings to control all of the pages/posts (overwrites the default theme CSS).
2. Page Settings to create an unique background color and link states for the specific page. Page Settings will then overwrite the Global Settings.

Hide default theme CSS tag/object setting by adding a background color:
A checkbox for hiding the default theme Header, Footer and other objects / hide default WordPress theme objects. Then a background body color box. Default color could be white. This color then hides everything below the Elementor elements. There is then no need to know what the CSS name/Tag of the various theme objects are called, as they would be hidden behind an Elementor body color.
#627
#629

Link States
Global link states - overwrites whatever colors the theme uses.
Page setting link states - overwrites whatever the global setting uses.
#534

Connect link state effects.
#528