but what is it with the penchant these days to use absolutely minimalistic, flat interfaces with zero help on how to use the interface? It's a slideshow. It is

but what is it with the penchant these days to use absolutely minimalistic, flat interfaces with zero help on how to use the interface? It's a slideshow. It is intended to be operated by the presenter (who knows the shortcuts) and for those watching it to be able to focus on the content, not the UI. There are legitimate complaints to be made about minimalistic interfaces, but IMO this is not one. It's a situation where you want to deliberately hide the interface.