Hi there,
1. Colors of links can be set in the Customizer > Colors –> Body / Content etc.
2. Not at this time – we will be adding that feature into the Pro version of the plugin.
3. WP has its own filter for setting colors:
add_action( 'after_setup_theme', function() {
add_theme_support(
'editor-color-palette',
array(
array(
'name' => __( 'Scuro', 'castiglioni' ),
'slug' => 'dark',
'color' => '#382c33',
),
array(
'name' => __( 'Chiaro', 'castiglioni' ),
'slug' => 'light',
'color' => '#eeeeee',
),
)
);
}, 50 );
This also will become part of a global color pallet in the future.