nixos/home/hyprland/waybar/style.css

* {
    font-family: "Fira Sans";
    font-size: 18px;
}

window > box {
    margin-left: 10px;
    margin-right: 10px;
    border-top-left-radius: 0px;
    border-top-right-radius: 0px;
    border-bottom-left-radius: 10px;
    border-bottom-right-radius: 10px;
}

tooltip { border-radius: 10px; }

#workspaces,
#cava,
#cpu,
#memory,
#temperature,
#clock,
#mpris,
#pulseaudio,
#bluetooth,
#network,
#backlight,
#battery,
#tray {
    margin: 0px;
    padding-left: 10px;
    padding-right: 10px;
}