by steps
000000 000000
000000
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ffff7f
00007f 00007f
00007f
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0000ff
007f00 007f00
007f00
007f7f 007f7f
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eaef7f
007fff 007fff
007fff
00ff00 00ff00
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00ff7f 00ff7f
00ff7f
d6df80 d6df80
d6df80
00ffff 00ffff
00ffff
7f0000 7f0000
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c2cf80 c2cf80
c2cf80
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aebf81 aebf81
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7fffff
9aaf81 9aaf81
9aaf81
ff0000 ff0000
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869f82 869f82
869f82
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
728f82 728f82
728f82
ffff00 ffff00
ffff00
ffffff ffffff
ffffff
5e8083 5e8083
5e8083