by steps
000000 000000
000000
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ffff00
00007f 00007f
00007f
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0000ff
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f3f014
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007fff
00ff00 00ff00
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00ff7f
e8e228 e8e228
e8e228
00ffff 00ffff
00ffff
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7f007f
ddd43c ddd43c
ddd43c
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7f7f00 7f7f00
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d2c650 d2c650
d2c650
7f7fff 7f7fff
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7fff7f 7fff7f
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7fffff 7fffff
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c7b764 c7b764
c7b764
ff0000 ff0000
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ff00ff ff00ff
ff00ff
bca978 bca978
bca978
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
b19b8c b19b8c
b19b8c
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
a68da1 a68da1
a68da1