After #1, there are a few more things to consider reagarding the font used in the frame's title and subtitle: - [ ] Frame title should be bold. - [ ] Font of the frame subtitle are not consistent (missing bold?). - Could test using Arial bold (https://www.developpez.net/forums/d864650/autres-langages/autres-langages/latex/mise-forme/utiliser-fonte-arial-black-latex/) or URW Grotesk (https://tug.org/FontCatalogue/urwgrotesk/), or Helvetica bold instead (https://tug.org/FontCatalogue/qthelvetblack/). 
After #1, there are a few more things to consider reagarding the font used in the frame's title and subtitle: