Tune status icons even more

 *  Avoid icons that don't work well on Debian (conflict in Private Use
    Unicode area).

 *  Simplify battery statuses even more (with better understanding
    of ACPI statuses).

dotfiles/i3status.conf

 order += "tztime local"
 
 battery 0 {
-       format = "%status %percentage %remaining"
-       format_down = "❌"
-       status_unk = "❓"
-       status_chr = ""
-       status_bat = ""
-       status_full = "☺ "
+       format = "%status%percentage"
+       format_down = "✕"
+       status_unk = ""
+       status_chr = "↑"
+       status_bat = "↓"
+       status_full = ""
        path = "/sys/class/power_supply/BAT%d/uevent"
        low_threshold = 30
        threshold_type = percentage
 }
 
 battery 1 {
-       format = "%status %percentage %remaining"
-       format_down = "❌"
-       status_unk = "❓"
-       status_chr = ""
-       status_bat = ""
-       status_full = "☺ "
+       format = "%status%percentage"
+       format_down = "✕"
+       status_unk = ""
+       status_chr = "↑"
+       status_bat = "↓"
+       status_full = ""
        path = "/sys/class/power_supply/BAT%d/uevent"
        low_threshold = 5
        threshold_type = percentage
 }
 
 volume master {
-    format          = " %volume"
-    format_muted    = " ---%%"
+    format          = "♪%volume"
+    format_muted    = "♩--%%"
     device          = "default"
     mixer           = "Master"
     mixer_idx       = 0