An unofficial UHasselt Beamer theme, because they only provide a PowerPoint template :(
You either have the option to include the style files in your project folder, or you can place them in the beamer themes folder (this should be $TEXMFHOME/tex/latex/beamer/themes/).
If you're using MikTeX you might need to refresh the file name database.
make install will create a folder in your home directory. This folder will contain the style files and your LaTeX compiler will probably find it.
\usetheme{UHBeamer} or \usetheme{UHBeamerLight}
In the YAML header: for beamer_presentation add option theme: "UHBeamer" or theme: "UHBeamerLight"