Metropolis is originally created by Matthias Vogelgesang and is available from https://github.com/matze/mtheme as well as CTAN. More information about the theme, including the design principles, can be found at http://bloerg.net/2014/09/20/a-modern-beamer-theme.html. This version demonstrates the use of a progress bar under the frame titles. See the manual for other customisation options.
A presentation theme for LaTeX Beamer that aims at a clean and minimalist design, so to minimize distractions and put the focus directly on the content.