by steps
000000 000000
000000
ff00ff ff00ff
ff00ff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
eb18ff eb18ff
eb18ff
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
d830ff d830ff
d830ff
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
c448ff c448ff
c448ff
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
b160ff b160ff
b160ff
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
9e78ff 9e78ff
9e78ff
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
8a90ff 8a90ff
8a90ff
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
77a8ff 77a8ff
77a8ff
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
64c1ff 64c1ff
64c1ff