tmuxrc: improve battery indication

script/batinfo

@@ -7,5 +7,5 @@ set -e
 if [ $(uname -s) = "Darwin" ]; then
   echo "" # TODO
 else # Linux
-  echo "$(cat /sys/class/power_supply/BAT0/capacity)%"
+  echo "$(cat /sys/class/power_supply/BAT0/capacity)"
 fi

script/tmbatinfo

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+#
+# Print battery percentage to stdout
+
+set -e
+
+pc=$(batinfo)
+
+if [ "$pc" -gt 40 ]; then
+  echo "#[fg=black, bg=green] $(batinfo)% #[default]"
+elif [ "$pc" -gt 10 ]; then
+  echo "#[fg=black, bg=yellow] $(batinfo)% #[default]"
+else
+  echo "#[fg=black, bg=red] $(batinfo)% #[default]"
+fi