by steps
000000 000000
000000
7c7a85 7c7a85
7c7a85
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
7c7886 7c7886
7c7886
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
7c7787 7c7787
7c7787
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
7c7689 7c7689
7c7689
7f00ff 7f00ff
7f00ff
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7f7f7f
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7c758a
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
7c738b 7c738b
7c738b
ff0000 ff0000
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ff007f
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ff00ff
7c728d 7c728d
7c728d
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
7c718e 7c718e
7c718e
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
7c7090 7c7090
7c7090