by steps
000000 000000
000000
b728c5 b728c5
b728c5
00007f 00007f
00007f
0000ff 0000ff
0000ff
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007f00
007f7f 007f7f
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b627c4
007fff 007fff
007fff
00ff00 00ff00
00ff00
00ff7f 00ff7f
00ff7f
b627c3 b627c3
b627c3
00ffff 00ffff
00ffff
7f0000 7f0000
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7f007f 7f007f
7f007f
b526c3 b526c3
b526c3
7f00ff 7f00ff
7f00ff
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7f7f7f
b526c2 b526c2
b526c2
7f7fff 7f7fff
7f7fff
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7fff7f
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7fffff
b426c1 b426c1
b426c1
ff0000 ff0000
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b425c1 b425c1
b425c1
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
b325c0 b325c0
b325c0
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff