Use some custom css variables as Generatepress theme settings?

Hi there,

1. you can use a filter like this to set GP’s default color pallette, you can add more than 7 values:

//gp dynamic color default values
add_filter( 'option_generate_settings', function( $settings ) {
    $settings['global_colors'] = [
        [
            'name' => __( 'Contrast', 'generatepress' ),
            'slug' => 'contrast',
            'color' => '#222222',
        ],
        [
            'name' => sprintf( __( 'Contrast %s', 'generatepress' ), '2' ),
            'slug' => 'contrast-2',
            'color' => '#575760',
        ],
        // And so on..
    ];

    return $settings;
} );

2. For the typography, you can use variations in the fields, here’s a screenshot for your reference:
https://app.screencast.com/DApEQqOk8Tdjy

Yes, you can use the generate_font_option_defaults filter like this:

// Custom function to modify the default font options
function custom_generate_font_option_defaults( $defaults ) {
    // Modify the default font options as needed
    $defaults['font_body'] = 'Arial';
    $defaults['font_body_category'] = 'sans-serif';
    $defaults['font_body_variants'] = '400,700';
    $defaults['body_font_weight'] = '400';
    $defaults['body_font_transform'] = 'uppercase';
    $defaults['body_font_size'] = '16';
    $defaults['body_line_height'] = '1.6'; // no unit.
    $defaults['paragraph_margin'] = '1.6'; // em.
    $defaults['font_top_bar'] = 'Arial';
    $defaults['font_top_bar_category'] = 'sans-serif';
    $defaults['font_top_bar_variants'] = '400,700';
    $defaults['top_bar_font_weight'] = '400';
    $defaults['top_bar_font_transform'] = 'uppercase';
    $defaults['top_bar_font_size'] = '14';
    // Add more modifications as needed for other elements

    return $defaults;
}
add_filter( 'generate_font_option_defaults', 'custom_generate_font_option_defaults', 20 ); 

For more elements, check GP’s original code here:https://github.com/tomusborne/generatepress/blob/adfe090929b0515cdf894f4c6b722cfe8c0790dc/inc/defaults.php#L205