nix-config/home-manager/dotfiles/waybar/style.css

:root {
  --primary-color: #7b002c;
}

* {
  font-family: "CodeNewRoman Nerd Font";
  font-weight: bold;
  font-size: 12px;
  color: #000;
}

window#waybar {
  margin: 12px 24px;
  background-color: #fff;
  border: solid 2px var(--primary-color);
  min-height: 14px; /* set waybar's height to 14px */
  font-size: 14px; /* set only the font size to be bigger, which in turn will adjust the height of other elements */
  border-radius: 12px;
}

#clock,
#battery,
#cpu,
#wireplumber,
#bluetooth {
  padding: 0 12px;
}

#workspaces button.focused {
  border-bottom: solid 2px var(--primary-color);
  border-radius: 0;
}

#workspaces {
  padding: 4px 0;
}