android_transparency_color_hex

# Bash function which returns transparency hex value for color based on given opacity percentage.
# e.g. opacity 55 (opacity for 55%)

function opacity {
  hex_array=(00 03 05 08 0A 0D 0F 12 14 17 1A 1C 1F 21 24 26 29 2B 2E 30 33 36 38 3B 3D 40 42 45 47 4A 4D 4F 52 54 57 59 5C 5E 61 63 66 69 6B 6E 70 73 75 78 7A 7D 80 82 85 87 8A 8C 8F 91 94 96 99 9C 9E A1 A3 A6 A8 AB AD B0 B3 B5 B8 BA BD BF C2 C4 C7 C9 CC CF D1 D4 D6 D9 DB DE E0 E3 E6 E8 EB ED F0 F2 F5 F7 FA FC FF)
  echo "${hex_array[$1 + 1]}"
}