Alpha: rgba(204,204,204,0)   #CCCCCC00
Colormap: 8
       0: (  0,  0,  0,  0) #000000 black
       1: (205,133, 63,  0) #CD853F peru
       2: (190,190,190,  0) #BEBEBE grey
       3: (255,250,205,  0) #FFFACD LemonChiffon
       4: (255,255,255,  0) #FFFFFF white
       5: (204,204,204,255) #CCCCCC00 rgba(204,204,204,0)
       6: (  0,  0,  0,  0) #000000 black
       7: (  0,  0,  0,  0) #000000 black