A Really Simple, Minimalistic Beamer Theme
LianTze Lim (Overleaf)
Creative Commons CC BY 4.0
This is a VERY simple and minimalistic beamer theme, even reminiscent of marker pens on transparencies!
It mimics the look of the "seminar" package, which can only be used with plain TeX.
There are also some comments and example to show how to customise various elements, e.g. the font and colours.