by steps
000000 000000
000000
a77667 a77667
a77667
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
9f7c6e 9f7c6e
9f7c6e
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
978275 978275
978275
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
8f897c 8f897c
8f897c
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7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
878f83 878f83
878f83
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7f7fff
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7fff7f
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7f958a 7f958a
7f958a
ff0000 ff0000
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779c91 779c91
779c91
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
6fa298 6fa298
6fa298
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
68a9a0 68a9a0
68a9a0