by steps
000000 000000
000000
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7f7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f7f 007f7f
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728006 728006
728006
007fff 007fff
007fff
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00ff7f
66810d 66810d
66810d
00ffff 00ffff
00ffff
7f0000 7f0000
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5a8213 5a8213
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7f7f7f 7f7f7f
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4e831a 4e831a
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418421 418421
418421
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358527
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
29862e 29862e
29862e
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1d8835 1d8835
1d8835