So Simple is a minimal WordPress theme from Jason Schuller, the creator of Press75 WordPress themes. From the theme’s page:
In a flooded marketplace of overly complex WordPress themes, the So Simple theme has been created for those looking for something different. By eliminating all of the unnecessary elements found in typical WordPress themes, So Simple allows you to focus on beautiful words and nothing more. So Simple is minimalism at its best, providing a distraction-free writing and reading experience for less than a cup of coffee.