by steps
000000 000000
000000
728ff3 728ff3
728ff3
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
638df4 638df4
638df4
007fff 007fff
007fff
00ff00 00ff00
00ff00
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00ff7f
558bf6 558bf6
558bf6
00ffff 00ffff
00ffff
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7f0000
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7f007f
4789f7 4789f7
4789f7
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7f7f7f
3987f9 3987f9
3987f9
7f7fff 7f7fff
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7fff7f
7fffff 7fffff
7fffff
2a85fa 2a85fa
2a85fa
ff0000 ff0000
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1c83fc 1c83fc
1c83fc
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
0e81fd 0e81fd
0e81fd
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff