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<p style="margin-bottom: 0cm; margin-top: 0pt;">The squares are the
same color. Both squares are the same color of gray. Test them in a
drawing program. The eye adjusts to the surrounding colors...the
increased shadowing in the surrounding squares and the perceived
contrast cause the optical illusion.<br>
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<p style="margin-bottom: 0cm; margin-top: 0pt;"><a class="moz-txt-link-abbreviated" href="mailto:pwriter@zunzone.com">pwriter@zunzone.com</a>
wrote:</p>
<blockquote
cite="mid:20091024085220.3dbe5b067fb25953b771390b9c363ec0.c0bc4c56f8.wbe@email.secureserver.net"
type="cite"><span
style="font-family: Verdana; color: rgb(0, 0, 0); font-size: 10pt;">
<div>Thanks Matt. At first I thought they where saying 'squares'
where the same color (wrong), but the A & B are the same color.
There is no text explaining the 'thing'.</div>
<div>Patrick<br>
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</span></blockquote>
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