by steps
000000 000000
000000
9e728c 9e728c
9e728c
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
9c728b 9c728b
9c728b
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
9a738a 9a738a
9a738a
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
987489 987489
987489
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
967588 967588
967588
7f7fff 7f7fff
7f7fff
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7fff7f
7fffff 7fffff
7fffff
947687 947687
947687
ff0000 ff0000
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ff00ff
927786 927786
927786
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
907885 907885
907885
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
8e7985 8e7985
8e7985