by steps
000000 000000
000000
728a18 728a18
728a18
00007f 00007f
00007f
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0000ff
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007f00
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007f7f
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737a31
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007fff
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00ff7f
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746b4a
00ffff 00ffff
00ffff
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7f007f
765c63 765c63
765c63
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774d7d
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7fff7f
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783e96 783e96
783e96
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7a2faf
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ff7f00
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ff7f7f
ff7fff ff7fff
ff7fff
7b20c8 7b20c8
7b20c8
ffff00 ffff00
ffff00
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ffff7f
ffffff ffffff
ffffff
7d11e2 7d11e2
7d11e2