I wrote a wordpress plugin “Yellow Pencil - Visual Theme Customizer” this plugin customize all theme typography and theme design by visual way.
You can try the plugin here.
Don’t add more theme options for typography, colors etc to your theme. Wordpress Themes not more need colors, font family etc options. Include Yellow Pencil to your theme with TGM Plugin Activation and so your theme will fully customizable. Its free!
ago 2days, I created free lite version so you can add this plugin to your themes for free. I Added this plugin to my all themes and this plugin make happy my customers and I have more sales.
If you need help, take a look to Plugin Documentation