WaybarConfig/style.css

* {
    border: none;
    border-radius: 0;
    /* `otf-font-awesome` is required to be installed for icons */
    /*font-family: Roboto, Helvetica, Arial, sans-serif;*/
    font-family: Ubuntu, Noto, Helvetica, Arial, sans-serif;
    font-size: 14px;
    min-height: 0;
    margin-right: 0;
}

window#waybar {
    background-color: rgba(43, 48, 59, 0.35);
    border-bottom: 3px solid rgba(100, 114, 125, 0.35);
    color: #ffffff;
    transition-property: background-color;
    transition-duration: .5s;
}

window#waybar.hidden {
    opacity: 0.2;
}

/*
window#waybar.empty {
    background-color: transparent;
}
window#waybar.solo {
    background-color: #FFFFFF;
}
*/

window#waybar.termite {
    background-color: #3F3F3F;
}

window#waybar.chromium {
    background-color: #000000;
    border: none;
}

/* If workspaces is the leftmost module, omit left margin */
.modules-left > widget:first-child > #workspaces {
    margin-left: 0;
}

/* If workspaces is the rightmost module, omit right margin */
.modules-right > widget:last-child > #workspaces, #clock {
    margin-right: 0;
}

#workspaces button {
    padding: 0 5px;
    background-color: transparent;
    color: #ffffff;
    /* Use box-shadow instead of border so the text isn't offset */
    box-shadow: inset 0 -3px transparent;
}

/* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
#workspaces button:hover {
    background: rgba(0, 0, 0, 0.2);
    box-shadow: inset 0 -3px #ffffff;
}

#workspaces button.focused {
    background-color: #64727D;
    box-shadow: inset 0 -3px #ffffff;
}

#workspaces button.urgent {
    background-color: #eb4d4b;
}

#mode {
    background-color: #64727D;
    border-bottom: 3px solid #ffffff;
}

#clock,
#battery,
#cpu,
#custom-gpu-usage,
#memory,
#disk,
#temperature,
#backlight,
#network,
#pulseaudio,
#custom-media,
#tray,
#mode,
#idle_inhibitor,
#mpd {
    padding: 0 6px;
    margin-left: 3;
}

/* #window,
#workspaces {
    margin: 0 4px;
} */

#clock {
    background-color: #64727D;
/*     font-size: 14px; */
}

#battery {
    background-color: #ffffff;
    color: #000000;
}

#battery.charging, #battery.plugged {
    color: #ffffff;
    background-color: #26A65B;
}

@keyframes blink {
    to {
        background-color: #ffffff;
        color: #000000;
    }
}

#battery.critical:not(.charging) {
    background-color: #f53c3c;
    color: #ffffff;
    animation-name: blink;
    animation-duration: 0.5s;
    animation-timing-function: linear;
    animation-iteration-count: infinite;
    animation-direction: alternate;
}

label:focus {
    background-color: #000000;
}

#cpu, #temperature.cpu {background-color: #2eac41;}
#cpu {
    background-image: url('/home/luke/.config/waybar/ryzen.svg');
    background-position: left;
    background-repeat: no-repeat;
    background-size: contain;
    /* color: #000000; */
    font-family: Fira Code;
}
#temperature.cpu {margin-left: 0;}

#custom-gpu-usage, #temperature.gpu, #temperature.igpu, #temperature.dgpu {background-color: #800000;}
#custom-gpu-usage {
    background-image: url('/home/luke/.config/waybar/Radeon_vega_graphics_badge.png');
    background-position: left;
    background-repeat: no-repeat;
    background-size: contain;
    /* color: #000000; */
    font-family: Fira Code;
    font-size: 9px;
}
#temperature.gpu, #temperature.igpu, #temperature.dgpu {margin-left: 0;}

#memory {background-color: #9b59b6;}

#disk, #temperature.nvme {background-color: #964B00;}
#temperature.nvme {margin-left: 0;}

#backlight {background-color: #90b1b1;}

#network {background-color: #2980b9;}
/* #network.disconnected {background-color: #f53c3c;} */
#temperature.wifi {margin-left: 0; background-color: #2980b9;}

#pulseaudio {
    background-color: #90a400;
    /* color: #000000; */
}
#pulseaudio.muted {
    background-color: #90b1b1;
    color: #2a5c45;
}

#custom-media {
    background-color: #66cc99;
    color: #2a5c45;
    min-width: 100px;
}

#custom-media.custom-spotify {background-color: #66cc99;}
#custom-media.custom-vlc {background-color: #ffa000;}

#temperature {background-color: #f0932b;}
#temperature.critical {background-color: #eb4d4b;}

#tray {background-color: #2980b9;}

#idle_inhibitor {background-color: #2d3436;}
#idle_inhibitor.activated {
    background-color: #ecf0f1;
    color: #2d3436;
}

#mpd {
    background-color: #66cc99;
    color: #2a5c45;
}
#mpd.disconnected {background-color: #f53c3c;}
#mpd.stopped {background-color: #90b1b1;}
#mpd.paused {background-color: #51a37a;}

#language {
    background: #00b093;
    color: #740864;
    padding: 0 5px;
    margin: 0 5px;
    min-width: 16px;
}