Polybar: Centralize padding settings

.config/polybar/config

@@ -27,6 +27,9 @@ foreground-2 = ${xrdb:fg2}
 foreground-3 = ${xrdb:fg3}
 foreground-4 = ${xrdb:fg4}
 
+[res/config]
+padding = 2
+
 [res/fonts]
 font-0 = "xos4 Terminus:size=9;2"
 font-1 = "Wuncon Siji:size=9;2"
@@ -93,14 +96,14 @@ content-foreground = ${res/colors.background-4}
 type = internal/i3
 format = <label-state><label-mode>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.primary}
 enable-scroll = false
 index-sort = true
 pin-workspaces = true
 
-label-mode-padding = 2
+label-mode-padding = ${res/config.padding}
 label-mode-foreground = ${res/colors.background}
 label-mode-background = ${res/colors.primary}
 
@@ -125,7 +128,7 @@ label-urgent-background = ${res/colors.alert}
 type = internal/bspwm
 format = <label-state>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.primary}
 enable-scroll = false
@@ -144,7 +147,7 @@ ws-icon-9 = 10;
 ws-icon-default = 
 
 label-focused = %name%
-label-focused-padding = 2
+label-focused-padding = ${res/config.padding}
 label-focused-foreground = ${res/colors.background}
 label-focused-background = ${res/colors.secondary}
 
@@ -174,7 +177,7 @@ format-charging = <animation-charging><label-charging>
 format-discharging = <ramp-capacity><label-discharging>
 format-full = <label-full>
 format-full-prefix = 
-format-full-prefix-padding = 2
+format-full-prefix-padding = ${res/config.padding}
 format-full-prefix-foreground = ${res/colors.background}
 format-full-prefix-background = ${res/colors.alert}
 time-format = %H:%M
@@ -182,7 +185,7 @@ full-at = 98
 interval = 15
 
 label-charging = %percentage%%
-label-charging-padding = 2
+label-charging-padding = ${res/config.padding}
 label-charging-foreground = ${res/colors.background-4}
 label-charging-background = ${res/colors.background}
 label-discharging = %percentage%% (%time%)
@@ -201,7 +204,7 @@ ramp-capacity-5= 
 ramp-capacity-6= 
 ramp-capacity-7= 
 ramp-capacity-8= 
-ramp-capacity-padding = 2
+ramp-capacity-padding = ${res/config.padding}
 ramp-capacity-foreground = ${res/colors.background}
 ramp-capacity-background = ${res/colors.icon-battery}
 
@@ -223,20 +226,20 @@ animation-charging-framerate = 500
 type = internal/cpu
 format = <label>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.icon-cpu}
 interval = 1
 
 label = %percentage%%
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 
 [module/date]
 type = internal/date
 format = <label>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.primary}
 date = %a
@@ -244,20 +247,20 @@ time = %I:%M %p
 interval = 30
 
 label = %date% %time%
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 
 [module/memory]
 type = internal/memory
 format = <label>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.icon-memory}
 interval = 1
 
 label = %percentage_used%%
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 
 [module/update-arch]
@@ -265,28 +268,28 @@ type = custom/script
 exec = echo `checkupdates | wc -l`
 exec-if = wget -q --spider http://www.startpage.com/ && uname -r | grep -q "ARCH" && [ `checkupdates | wc -l` != 0 ]
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.alert}
 interval = 60
 
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 
 [module/volume]
 type = internal/volume
 format-volume = <label-volume>
 format-volume-prefix = 
-format-volume-prefix-padding = 2
+format-volume-prefix-padding = ${res/config.padding}
 format-volume-prefix-foreground = ${res/colors.background}
 format-volume-prefix-background = ${res/colors.icon-volume}
 format-muted = <label-muted>
 format-muted-prefix = 
-format-muted-prefix-padding = 2
+format-muted-prefix-padding = ${res/config.padding}
 format-muted-prefix-foreground = ${res/colors.background}
 format-muted-prefix-background = ${res/colors.background-4}
 
-label-volume-padding = 2
+label-volume-padding = ${res/config.padding}
 label-volume-background = ${res/colors.background}
 
 label-muted-padding = ${self.label-volume-padding}
@@ -300,10 +303,10 @@ format-disconnected = <label-disconnected>
 interface = wlp1s0
 
 label-connected = %essid%
-label-connected-padding = 2
+label-connected-padding = ${res/config.padding}
 label-connected-background = ${res/colors.background}
 label-disconnected = 
-label-disconnected-padding = 2
+label-disconnected-padding = ${res/config.padding}
 label-disconnected-foreground = ${res/colors.background}
 label-disconnected-background = ${res/colors.background-4}
 
@@ -312,7 +315,7 @@ ramp-signal-1 = 
 ramp-signal-2 = 
 ramp-signal-3 = 
 ramp-signal-4 = 
-ramp-signal-padding = 2
+ramp-signal-padding = ${res/config.padding}
 ramp-signal-foreground = ${res/colors.background}
 ramp-signal-background = ${res/colors.primary}
 
@@ -320,18 +323,18 @@ ramp-signal-background = ${res/colors.primary}
 type = internal/xbacklight
 format = <label>
 format-prefix = 
-format-prefix-padding = 2
+format-prefix-padding = ${res/config.padding}
 format-prefix-foreground = ${res/colors.background}
 format-prefix-background = ${res/colors.icon-xbacklight}
 
 label = %percentage%%
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 
 [module/xwindow]
 type = internal/xwindow
 label = %title%
-label-padding = 2
+label-padding = ${res/config.padding}
 label-background = ${res/colors.background}
 label-maxlen = 75
 label-ellipsis = true