Use strong quotes

.bin/check-battery-level

@@ -1,8 +1,8 @@
 #!/usr/bin/env bash
 
-RED='\033[0;31m'
-GREEN='\033[0;32m'
-NC='\033[0m'
+RED="\033[0;31m"
+GREEN="\033[0;32m"
+NC="\033[0m"
 
 capacityStatus=$(cat /sys/class/power_supply/BAT0/capacity)
 chargingStatus=""