Polybar: Colorize the battery bar if we're charging

.config/polybar/config

@@ -98,6 +98,7 @@ time-format = %H:%M
 interval = 15
 
 format-charging = <ramp-capacity>
+format-charging-foreground = ${res/colors.green}
 format-discharging = <ramp-capacity>
 format-full = <ramp-capacity>
 format-full-foreground = ${res/colors.green}
@@ -248,7 +249,7 @@ format-foreground = ${res/colors.yellow}
 type = custom/script
 interval = 5
 exec = "echo "
-exec-if = "systemctl is-active --quiet 9iron-backup.service"
+exec-if = "systemctl is-active --quiet backup.service"
 format-foreground = ${res/colors.yellow}
 
 [module/wlan-laptop]