I am on the Swift Basic theme and downloaded it on my desktop. Right now I am on my laptop and trying to learn how to make changes to the header (put my own logo up). My knowledge of how to do this is limited, but it seems that when you download a theme it installs in a wp-content folder? You then need to change the code in the header.php file in order for it to reflect on the site. If this is true, can I just download the theme again, make the changes and see the result on my wordpress site? Or do I need to go back to my desktop computer and make the changes there?