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<P><FONT SIZE=2 FACE="Arial">Hi, </FONT>
<BR><FONT SIZE=2 FACE="Arial">I have tried to color "my" water blue. So I have copied the code from the wiki in my layout. </FONT>
<BR><FONT FACE="Times New Roman">code metapost </FONT>
<BR><FONT FACE="Times New Roman">def a_water (expr p) = </FONT>
<BR><FONT FACE="Times New Roman">T:=identity; </FONT>
<BR><FONT FACE="Times New Roman">thfill p withcolor (0.1, 0.2, 0.8); </FONT>
<BR><FONT FACE="Times New Roman">enddef; </FONT>
<BR><FONT FACE="Times New Roman">endcode </FONT>
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<P><FONT SIZE=2 FACE="Arial">But it doesn`t work? </FONT>
<BR><FONT SIZE=2 FACE="Arial">What could be the reason? </FONT>
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<P><FONT SIZE=2 FACE="Arial">73</FONT>
<BR><FONT SIZE=2 FACE="Arial">Markus </FONT>
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