by steps
000000 000000
000000
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f20915
00007f 00007f
00007f
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0000ff
007f00 007f00
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007f7f
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e71027
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
dc183a dc183a
dc183a
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
d1204d d1204d
d1204d
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c72860 c72860
c72860
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7fffff
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bc3072
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b13885
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
a64098 a64098
a64098
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
9c48ab 9c48ab
9c48ab