by steps
000000 000000
000000
728b80 728b80
728b80
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
657b7f 657b7f
657b7f
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
596c7f 596c7f
596c7f
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
4c5d7f 4c5d7f
4c5d7f
7f00ff 7f00ff
7f00ff
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7f7f00
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7f7f7f
404e7f 404e7f
404e7f
7f7fff 7f7fff
7f7fff
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7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
333e7f 333e7f
333e7f
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ff007f
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ff00ff
272f7f 272f7f
272f7f
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
1a207f 1a207f
1a207f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
0e117f 0e117f
0e117f