Add community scripts for i3blocks

.local/bin/i3scripts/contrib/brightness

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+################################
+# Shows current brightness
+#
+# dependencies:
+# - xbacklight
+#
+# @return {Number}: Current brightness
+################################
+
+case $BLOCK_BUTTON in
+	# right click
+	# set to `20
+	3) xbacklight -set 20 ;;
+
+	# scroll up
+	# raise brightness
+	4) xbacklight -inc 10 ;;
+
+	# scroll down
+	# lower brightness
+	5) xbacklight -dec 10 ;;
+esac
+
+printf "%.0f" "$(xbacklight -get)"