by steps
000000 000000
000000
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00007f
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0000ff
007f00 007f00
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7be717
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007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
78d02e 78d02e
78d02e
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f
75b845 75b845
75b845
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72a15d 72a15d
72a15d
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7fff7f
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7fffff
6f8a74 6f8a74
6f8a74
ff0000 ff0000
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6c728b 6c728b
6c728b
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
695ba2 695ba2
695ba2
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
6644ba 6644ba
6644ba