by steps
000000 000000
000000
007f7f 007f7f
007f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
1a728e 1a728e
1a728e
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
34659e 34659e
34659e
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
4e58ae 4e58ae
4e58ae
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7f7f00
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7f7f7f
684bbe 684bbe
684bbe
7f7fff 7f7fff
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7fff7f
7fffff 7fffff
7fffff
823ece 823ece
823ece
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9c31de 9c31de
9c31de
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ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
b624ee b624ee
b624ee
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
d018fe d018fe
d018fe