by steps
000000 000000
000000
7f0000 7f0000
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00007f
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0000ff
007f00 007f00
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007f7f 007f7f
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7d1408
007fff 007fff
007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
7b2911 7b2911
7b2911
00ffff 00ffff
00ffff
7f007f 7f007f
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793d19 793d19
793d19
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747b33 747b33
747b33
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
728f3b 728f3b
728f3b
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
71a444 71a444
71a444