by steps
000000 000000
000000
18fa1c 18fa1c
18fa1c
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
24ea18 24ea18
24ea18
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
31db15 31db15
31db15
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
3ecb11 3ecb11
3ecb11
7f00ff 7f00ff
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4bbc0e 4bbc0e
4bbc0e
7f7fff 7f7fff
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7fff7f 7fff7f
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7fffff
58ad0a 58ad0a
58ad0a
ff0000 ff0000
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659d07 659d07
659d07
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
728e03 728e03
728e03
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff