Xresources: Unify bg color naming, Polybar: Tweak volume module

.Xresources

@@ -32,15 +32,13 @@ rofi.width: 30
 
 ! hard contrast: 
 *background: #1d2021
-! medium contrast
-*background_med: #282828
-! soft contrast
-*background_soft: #32302f
-
-*bg2: #504945
-*bg3: #665c54
+*bg2: #282828
+*bg3: #32302f
+*bg4: #504945
+*bg5: #665c54
 
 *foreground: #ebdbb2
+
 ! Black + DarkGrey
 *color0:  #282828
 *color8:  #928374

.config/i3/config

@@ -18,8 +18,8 @@ gaps outer 0
 # Note: fallbacks are copied from gruvbox-dark
 # Source: https://github.com/morhetz/gruvbox-generalized
 set_from_resource $bg background #1d2021
-set_from_resource $bgm background_med #282828
-set_from_resource $bg_soft background_soft #32302f
+set_from_resource $bgm bg2 #282828
+set_from_resource $bg_soft bg3 #32302f
 set_from_resource $black color0 #282828
 set_from_resource $red color1 #cc241d
 set_from_resource $green color2 #98971a

.config/polybar/config

@@ -22,10 +22,11 @@ resource-good-dark = ${xrdb:color2:#98971a}
 resource-good = ${xrdb:color10:#b8bb26}
 
 background = ${xrdb:background:#1d2021}
-background-med = ${xrdb:bg1:#282828}
-background-soft = ${xrdb:bg2:#504945}
+background-med = ${xrdb:bg3:#282828}
+background-soft = ${xrdb:bg4:#504945}
 foreground = ${xrdb:color15:#ebdbb2}
 foreground-alt = ${xrdb:color8:#928374}
+foreground-soft = 
 
 [res/fonts]
 #font-0 = "DejaVu Sans:size=10;1"
@@ -557,7 +558,7 @@ label-volume = %percentage%%
 label-volume-padding = 0
 label-volume-foreground = ${res/colors.foreground}
 label-volume-background = ${res/colors.background}
-label-muted = 
+label-muted =  %percentage%%
 label-muted-padding = ${self.label-volume-padding}
 label-muted-foreground = ${res/colors.background-soft}
 label-muted-background = ${res/colors.background}