by steps
000000 000000
000000
5e856e 5e856e
5e856e
00007f 00007f
00007f
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0000ff
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007f00
007f7f 007f7f
007f7f
728480 728480
728480
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007fff
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00ff7f 00ff7f
00ff7f
868392 868392
868392
00ffff 00ffff
00ffff
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7f007f
9a82a4 9a82a4
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ae82b6 ae82b6
ae82b6
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ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
ea7fec ea7fec
ea7fec
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff