by steps
000000 000000
000000
ffff7f ffff7f
ffff7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
fae18d fae18d
fae18d
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
f5c49c f5c49c
f5c49c
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
f1a7ab f1a7ab
f1a7ab
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
ec8aba ec8aba
ec8aba
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
e76cc8 e76cc8
e76cc8
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
ff00ff ff00ff
ff00ff
e34fd7 e34fd7
e34fd7
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
de32e6 de32e6
de32e6
ffff00 ffff00
ffff00
ffffff ffffff
ffffff
da15f5 da15f5
da15f5