Update to latest style.css

.config/waybar/style.css

 * {
-	border: none;
-	border-radius: 0;
-	font-family: "monospace";
-	font-size: 12px;
-	min-height: 0;
-	margin: 0px;
+    /* `otf-font-awesome` is required to be installed for icons */
+    font-family: FontAwesome, Roboto, Helvetica, Arial, sans-serif;
+    font-size: 12px;
 }
 
 window#waybar {
-	/*background: #000000;*/
-	background: rgba(0, 0, 0, 0.7);
-	color: gray;
-	color: #ffffff;
+    background-color: rgba(43, 48, 59, 0.5);
+    border-bottom: 3px solid rgba(100, 114, 125, 0.5);
+    color: #ffffff;
+    transition-property: background-color;
+    transition-duration: .5s;
 }
 
-#window {
-	color: #e4e4e4;
-	font-weight: bold;
+window#waybar.hidden {
+    opacity: 0.2;
 }
 
-#workspaces {
-	padding: 0px;
-	margin: 0px;
+/*
+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;
+}
+
+button {
+    /* Use box-shadow instead of border so the text isn't offset */
+    box-shadow: inset 0 -3px transparent;
+    /* Avoid rounded borders under each button name */
+    border: none;
+    border-radius: 0;
+}
+
+/* https://github.com/Alexays/Waybar/wiki/FAQ#the-workspace-buttons-have-a-strange-hover-effect */
+button:hover {
+    background: inherit;
+    box-shadow: inset 0 -3px #ffffff;
+}
+
+/* you can set a style on hover for any module like this */
+#pulseaudio:hover {
+    background-color: #a37800;
 }
 
 #workspaces button {
-	padding: 0 2px;
-	margin: 0px;
-	background: transparent;
-	color: #ff8700;
-	/*
-	color: #00afd7;
-	color: #ffffff;
-	border: 1px solid #00afd7;
-	*/
-	border: 1px solid #1b1d1e;
-	font-weight: bold;
+    padding: 0 5px;
+    background-color: transparent;
+    color: #ffffff;
 }
+
 #workspaces button:hover {
-	box-shadow: inherit;
-	text-shadow: inherit;
+    background: rgba(0, 0, 0, 0.2);
 }
 
 #workspaces button.focused {
-	background: #e88939;
-	background: #00afd7;
-	color: #1b1d1e;
+    background-color: #64727D;
+    box-shadow: inset 0 -3px #ffffff;
 }
 
 #workspaces button.urgent {
-	background: #af005f;
-	color: #1b1d1e;
+    background-color: #eb4d4b;
 }
 
 #mode {
-	background: #af005f;
-	color: #1b1d1e;
+    background-color: #64727D;
+    box-shadow: inset 0 -3px #ffffff;
 }
-#clock, #battery, #cpu, #memory, #network, #pulseaudio, #custom-spotify, #tray, #mode {
-	padding: 0 3px;
-	margin: 0 2px;
+
+#clock,
+#battery,
+#cpu,
+#memory,
+#disk,
+#temperature,
+#backlight,
+#network,
+#pulseaudio,
+#wireplumber,
+#custom-media,
+#tray,
+#mode,
+#idle_inhibitor,
+#scratchpad,
+#power-profiles-daemon,
+#mpd {
+    padding: 0 10px;
+    color: #ffffff;
 }
 
-#clock {
+#window,
+#workspaces {
+    margin: 0 4px;
 }
 
-#battery {
+/* 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 {
+    margin-right: 0;
+}
+
+#clock {
+    background-color: #64727D;
 }
 
-#battery icon {
-    color: red;
+#battery {
+    background-color: #ffffff;
+    color: #000000;
 }
 
-#battery.charging {
+#battery.charging, #battery.plugged {
+    color: #ffffff;
+    background-color: #26A65B;
 }
 
 @keyframes blink {
     to {
-        background-color: #af005f;
+        background-color: #ffffff;
+        color: #000000;
     }
 }
 
-#battery.warning:not(.charging) {
-	background-color: #ff8700;
-	color: #1b1d1e;
-}
+/* Using steps() instead of linear as a timing function to limit cpu usage */
 #battery.critical:not(.charging) {
-    color: white;
+    background-color: #f53c3c;
+    color: #ffffff;
     animation-name: blink;
     animation-duration: 0.5s;
-    animation-timing-function: linear;
+    animation-timing-function: steps(12);
     animation-iteration-count: infinite;
     animation-direction: alternate;
 }
 
+#power-profiles-daemon {
+    padding-right: 15px;
+}
+
+#power-profiles-daemon.performance {
+    background-color: #f53c3c;
+    color: #ffffff;
+}
+
+#power-profiles-daemon.balanced {
+    background-color: #2980b9;
+    color: #ffffff;
+}
+
+#power-profiles-daemon.power-saver {
+    background-color: #2ecc71;
+    color: #000000;
+}
+
+label:focus {
+    background-color: #000000;
+}
+
 #cpu {
+    background-color: #2ecc71;
+    color: #000000;
 }
 
 #memory {
+    background-color: #9b59b6;
+}
+
+#disk {
+    background-color: #964B00;
+}
+
+#backlight {
+    background-color: #90b1b1;
 }
 
 #network {
+    background-color: #2980b9;
 }
 
 #network.disconnected {
-    background: #f53c3c;
+    background-color: #f53c3c;
 }
 
 #pulseaudio {
+    background-color: #f1c40f;
+    color: #000000;
 }
 
 #pulseaudio.muted {
+    background-color: #90b1b1;
+    color: #2a5c45;
+}
+
+#wireplumber {
+    background-color: #fff0f5;
+    color: #000000;
+}
+
+#wireplumber.muted {
+    background-color: #f53c3c;
+}
+
+#custom-media {
+    background-color: #66cc99;
+    color: #2a5c45;
+    min-width: 100px;
+}
+
+#custom-media.custom-spotify {
+    background-color: #66cc99;
 }
 
-#custom-spotify {
-    color: rgb(102, 220, 105);
+#custom-media.custom-vlc {
+    background-color: #ffa000;
+}
+
+#temperature {
+    background-color: #f0932b;
+}
+
+#temperature.critical {
+    background-color: #eb4d4b;
 }
 
 #tray {
+    background-color: #2980b9;
+}
+
+#tray > .passive {
+    -gtk-icon-effect: dim;
+}
+
+#tray > .needs-attention {
+    -gtk-icon-effect: highlight;
+    background-color: #eb4d4b;
+}
+
+#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;
+}
+
+#keyboard-state {
+    background: #97e1ad;
+    color: #000000;
+    padding: 0 0px;
+    margin: 0 5px;
+    min-width: 16px;
+}
+
+#keyboard-state > label {
+    padding: 0 5px;
+}
+
+#keyboard-state > label.locked {
+    background: rgba(0, 0, 0, 0.2);
+}
+
+#scratchpad {
+    background: rgba(0, 0, 0, 0.2);
 }
 
+#scratchpad.empty {
+	background-color: transparent;
+}
+
+#privacy {
+    padding: 0;
+}
+
+#privacy-item {
+    padding: 0 5px;
+    color: white;
+}
 
+#privacy-item.screenshare {
+    background-color: #cf5700;
+}
+
+#privacy-item.audio-in {
+    background-color: #1ca000;
+}
+
+#privacy-item.audio-out {
+    background-color: #0069d4;
+}