# merge_colors

Returns a color merged from a series of two or more colors by a given amount.

merge_colors(col1,col2,...,amount)
Returns a color merged from a series of two or more colors by a given amount.
COPY/// merge_colors(col1,col2,...,amount)
//
//  Returns a color merged from a series of two or more colors by
//  a given amount. An amount value of 0 returns the first color,
//  a value of 1 returns the last color, and values in-between
//  return a mix of two adjacent colors in the series.
//
//      col1        first color
//      col2        next color
//      amount      blend factor, [0,1]
//