by steps
000000 000000
000000
829200 829200
829200
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
8c8900 8c8900
8c8900
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
978100 978100
978100
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
a17800 a17800
a17800
7f00ff 7f00ff
7f00ff
7f7f00 7f7f00
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7f7f7f 7f7f7f
7f7f7f
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7fff7f 7fff7f
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7fffff 7fffff
7fffff
b76700 b76700
b76700
ff0000 ff0000
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ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
cc5600 cc5600
cc5600
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
d74e00 d74e00
d74e00