As for the NimConf theme, this is as close as I have come to replicating the general look of PMunch's presentation: [image link](https://imgur.com/a/0mjgokF).
The code for achieving this look is: template nimConfSlide(body: untyped) = ## Use this instead of `slide`, it will put the Nim-logo in the corner slide: cornerImage("https://github.com/nim-lang/assets/raw/master/Art/logo-crown.png", UpperRight, size=100, animate=false) body template nimConfTheme*() = ## Running this will give a dark background, yellow headings and yellow list bullets setSlidesTheme(Black) let nimYellow = "#FFE953" nb.addStyle: """ :root { --r-background-color: #181922; --r-heading-color: $1; --r-link-color: $1; --r-selection-color: $1; --r-link-color-dark: darken($1 , 15%) } .reveal ul, .reveal ol { display: block; text-align: left; } li::marker { color: $1; content: "ยป"; } li { padding-left: 12px; } """ % [nimYellow] Run `nimConfSlide` should be used as a substitute for `slide` and `nimConfTheme` just has to be run once at the beginning. This is of course just a starting point, customize it to your liking. If someone manages to get an even more Nim-y theme, please share it :)