by steps
000000 000000
000000
728c39 728c39
728c39
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00007f
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0000ff
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729345
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007fff
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00ff7f
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739a51
00ffff 00ffff
00ffff
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7f007f
74a15e 74a15e
74a15e
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75a86a 75a86a
75a86a
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75af76 75af76
75af76
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76b683
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ff7f7f
ff7fff ff7fff
ff7fff
77bd8f 77bd8f
77bd8f
ffff00 ffff00
ffff00
ffff7f ffff7f
ffff7f
ffffff ffffff
ffffff
78c59c 78c59c
78c59c