by steps
000000 000000
000000
7f7f00 7f7f00
7f7f00
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
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007f7f
7b7f0a 7b7f0a
7b7f0a
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
788014 788014
788014
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
75811e 75811e
75811e
7f00ff 7f00ff
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7f7f7f 7f7f7f
7f7f7f
728228 728228
728228
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7f7fff
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7fff7f
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7fffff
6e8232 6e8232
6e8232
ff0000 ff0000
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6b833c 6b833c
6b833c
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ff7f7f
ff7fff ff7fff
ff7fff
688446 688446
688446
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
658550 658550
658550