by steps
000000 000000
000000
7f7fff 7f7fff
7f7fff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
7c81fe 7c81fe
7c81fe
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
7a83fd 7a83fd
7a83fd
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
7785fc 7785fc
7785fc
7f00ff 7f00ff
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7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
7588fc 7588fc
7588fc
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
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728afb 728afb
728afb
ff0000 ff0000
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708cfa
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
6d8ef9 6d8ef9
6d8ef9
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
6b91f9 6b91f9
6b91f9