by steps
000000 000000
000000
83a16b 83a16b
83a16b
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
728c7d 728c7d
728c7d
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
627890 627890
627890
00ffff 00ffff
00ffff
7f0000 7f0000
7f0000
7f007f 7f007f
7f007f
5164a2 5164a2
5164a2
7f00ff 7f00ff
7f00ff
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7f7f00
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7f7f7f
4150b5 4150b5
4150b5
7f7fff 7f7fff
7f7fff
7fff00 7fff00
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7fff7f 7fff7f
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7fffff 7fffff
7fffff
313cc7 313cc7
313cc7
ff0000 ff0000
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ff00ff
2028da 2028da
2028da
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
1014ec 1014ec
1014ec
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff