by steps
000000 000000
000000
ffff00 ffff00
ffff00
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
ebfb14 ebfb14
ebfb14
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
d7f728 d7f728
d7f728
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
c3f33c c3f33c
c3f33c
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7f7f7f
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b0f050
7f7fff 7f7fff
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7fff00
7fff7f 7fff7f
7fff7f
7fffff 7fffff
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9cec64 9cec64
9cec64
ff0000 ff0000
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ff00ff
88e878 88e878
88e878
ff7f00 ff7f00
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
74e48c 74e48c
74e48c
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
61e1a1 61e1a1
61e1a1