by steps
000000 000000
000000
6595e3 6595e3
6595e3
00007f 00007f
00007f
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0000ff
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6892e6
007fff 007fff
007fff
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00ff7f
6b8fea 6b8fea
6b8fea
00ffff 00ffff
00ffff
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6e8ced 6e8ced
6e8ced
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728af1 728af1
728af1
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7587f4 7587f4
7587f4
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7884f8 7884f8
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ff7f7f
ff7fff ff7fff
ff7fff
7b81fb 7b81fb
7b81fb
ffff00 ffff00
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ffff7f
ffffff ffffff
ffffff