The theme editor makes it really easy to change the design of your
site. You can change the background colors, text colors, fonts, borders,
box shadows and more. All of this is done just by clicking around. You
don't need any knowledge of programming.
Below is a screen shot of the theme editor. On the left side of the
page are the different sections you can edit in the theme. Once you
click on a section , a menu for that section will show at the top of the
page. There you can change values for colors, sizes, etc...