code: def interpolate_tuple(startcolor, goalcolor, steps):
      
      # white
  
      R = startcolor[0]
      G = startcolor[1]
      B = startcolor[2]
  
      targetR = goalcolor[0]
      targetG = goalcolor[1]
      targetB = goalcolor[2]
  
      DiffR = targetR - R
      DiffG = targetG - G
      DiffB = targetB - B
  
      buffer = []
  
      for i in range(0, steps + 1):
          iR = R + (DiffR * i // steps)
          iG = G + (DiffG * i // steps)
          iB = B + (DiffB * i // steps)
  
          hR = string.replace(hex(iR), "0x", "")
          hG = string.replace(hex(iG), "0x", "")
          hB = string.replace(hex(iB), "0x", "")
  
          if len(hR) == 1:
              hR = "0" + hR
          if len(hB) == 1:
              hB = "0" + hB
  
          if len(hG) == 1:
              hG = "0" + hG
  
          color = string.upper("#" + hR + hG + hB)
          buffer.append(color)
  
      return buffer
docs: Take two RGB color sets and mix them over a specified number of steps.  Return the list