by steps
000000 000000
000000
78a696 78a696
78a696
00007f 00007f
00007f
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0000ff
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007f7f 007f7f
007f7f
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789994
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007fff
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00ff7f
798c92 798c92
798c92
00ffff 00ffff
00ffff
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7f007f
797f90 797f90
797f90
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7a728e 7a728e
7a728e
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7a658c
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7b588a 7b588a
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
7b4b88 7b4b88
7b4b88
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
7c3e87 7c3e87
7c3e87