Function getAlphaFromHex

getAlphaFromHex(hex): number
Extracts the alpha value from a hexadecimal color code.
Parameters
- hex: string
  The hexadecimal color code (e.g. '#AARRGGBB', '#RRGGBB')
Returns number
The alpha value as a decimal number (e.g. 0.5, 1, 0)

Since
0.11.0