Set a new iterm2 tab color for each session

gistfile1.txt

echo '
# Set iTerm2 tab/title “chrome” color (RGB values 0–255)
iterm_tabcolor() {
  local colors=(
    "255 0 0"   # Red
    "0 255 0"   # Green
    "0 0 255"   # Blue
    "255 255 0" # Yellow
    "0 255 255" # Cyan
    "255 0 255" # Magenta
    "192 192 192" # Silver
    "128 128 128" # Gray
    "128 0 0"   # Maroon
    "128 128 0" # Olive
    "0 128 0"   # Dark Green
    "128 0 128" # Purple
    "0 128 128" # Teal
    "0 0 128"   # Navy
  )
  local color=(${(s: :)colors[$RANDOM % ${#colors[@]} + 1]})
  printf '\''\033]6;1;bg;red;brightness;%d\a'\'' $color[1]
  printf '\''\033]6;1;bg;green;brightness;%d\a'\'' $color[2]
  printf '\''\033]6;1;bg;blue;brightness;%d\a'\'' $color[3]
}

# Reset to default
iterm_tabcolor_reset() {
  printf '\''\033]6;1;bg;*;default\a'\''
}

# Set a random color for each new session
iterm_tabcolor
' >> ~/.zshrc && source ~/.zshrc