by steps
000000 000000
000000
ff00ff ff00ff
ff00ff
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
f308f8 f308f8
f308f8
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
e811f2 e811f2
e811f2
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
dd19ec dd19ec
dd19ec
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
7f7f00
7f7f7f 7f7f7f
7f7f7f
d222e6 d222e6
d222e6
7f7fff 7f7fff
7f7fff
7fff00 7fff00
7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
c62bdf c62bdf
c62bdf
ff0000 ff0000
ff0000
ff007f ff007f
ff007f
bb33d9 bb33d9
bb33d9
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
b03cd3 b03cd3
b03cd3
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
a545cd a545cd
a545cd