Hello, @osmanalhashimy
Thanks for your contact.
For changing those icon colors, please navigate to Porto >> Theme Options >> Header >> WooCommerce and change the color from there as per your requirements.
And to remove the margin, we have to check it on your site that which header type are you using and from where that margin has been set on your site, so we request you to please share your site WP Admin URL and Credentials with us under the private area of this topic so that we will further look into it for you and help you out accordingly.
Best Regards,
PThemes Team.