by steps
000000 000000
000000
7f7f00 7f7f00
7f7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
7a830f 7a830f
7a830f
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
76871e 76871e
76871e
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
728b2e 728b2e
728b2e
7f00ff 7f00ff
7f00ff
7f7f7f 7f7f7f
7f7f7f
6e903d 6e903d
6e903d
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7f7fff
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7fff7f 7fff7f
7fff7f
7fffff 7fffff
7fffff
6a944c 6a944c
6a944c
ff0000 ff0000
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ff007f ff007f
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66985c 66985c
66985c
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
629c6b 629c6b
629c6b
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
5ea17b 5ea17b
5ea17b