Simplexity is a minimalistic theme for Jekyll. It is meant to showcase your content, using a monochrome color scheme and a fluid and responsive design. Large, legible fonts scale well across devices and various viewport sizes.
Simplexity is licensed under MIT license.
To get started you need to install Jekyll first. When you're done clone the Simplexity Git repo and drop into a command line then type jekyll serve. You should be able to see your site at http://0.0.0.0:4000.
You can easily customize Simplexity by adding your custom styles to basscss.css. It supports easily customizing the fonts via basscss variables. You can customize these in the basscss/basscss.css file, along with the custom media queries used to scale the font size based on the device viewport. I've kept custom styles to a minimum.