by steps
000000 000000
000000
7f7f7f 7f7f7f
7f7f7f
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
728b73 728b73
728b73
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
669868 669868
669868
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
5aa55c 5aa55c
5aa55c
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7f00ff
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4eb251 4eb251
4eb251
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42be46 42be46
42be46
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36cb3a 36cb3a
36cb3a
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
2ad82f 2ad82f
2ad82f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
1ee524 1ee524
1ee524