by steps
000000 000000
000000
668ba2 668ba2
668ba2
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
6a8b9e 6a8b9e
6a8b9e
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
6e8c9b 6e8c9b
6e8c9b
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
728c97 728c97
728c97
7f00ff 7f00ff
7f00ff
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7f7f00
7f7f7f 7f7f7f
7f7f7f
768d94 768d94
768d94
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
7a8d90 7a8d90
7a8d90
ff0000 ff0000
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ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
7e8e8d 7e8e8d
7e8e8d
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
828e89 828e89
828e89
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
868f86 868f86
868f86