by steps
000000 000000
000000
678167 678167
678167
00007f 00007f
00007f
0000ff 0000ff
0000ff
007f00 007f00
007f00
007f7f 007f7f
007f7f
698269 698269
698269
007fff 007fff
007fff
00ff00 00ff00
00ff00
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00ff7f
6b846b 6b846b
6b846b
00ffff 00ffff
00ffff
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7f007f
6e866e 6e866e
6e866e
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708870 708870
708870
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728a72 728a72
728a72
ff0000 ff0000
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758c75 758c75
758c75
ff7f00 ff7f00
ff7f00
ff7f7f ff7f7f
ff7f7f
ff7fff ff7fff
ff7fff
778e77 778e77
778e77
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
7a907a 7a907a
7a907a