less green assumes one monitor make executable

lessgreen

#!/bin/bash

# Get the initial gamma values for red, green, and blue
initial_gamma=$(xrandr --verbose | grep -m 1 'Gamma:' | awk '{print $2}')
initial_red=$(echo $initial_gamma | cut -d: -f1)
initial_green=$(echo $initial_gamma | cut -d: -f2)
initial_blue=$(echo $initial_gamma | cut -d: -f3)

# Define the display output, omitting the header "Monitors: 3"
output=$(xrandr --listmonitors | grep -v "Monitors:" | awk '{print $4}' | head -n 1)

# Convert initial green gamma to a float
initial_green=$(echo "scale=2; $initial_green" | bc)

# Define the decrement value (5%)
decrement=0.01

# Run the loop until the green gamma value is reduced to a minimum threshold
while (( $(echo "$initial_green > 0" | bc -l) )); do
    # Reduce the green gamma value by 5%
    initial_green=$(echo "scale=2; $initial_green - $decrement" | bc)

    # Ensure the green gamma value doesn't go below 0
    if (( $(echo "$initial_green < 0" | bc -l) )); then
        initial_green=0
    fi

    # Apply the new gamma values
    xrandr --output $output --gamma $initial_red:$initial_green:$initial_blue
    echo decreasing green

    # Wait for 1 seconds
    sleep 1
done

echo "Green gamma reduction complete."