<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=us-ascii"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]--></head><body lang=EN-NZ link="#0563C1" vlink="#954F72" style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal>Curious<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>I have in my layout some metapost code to redefine the plan gridlines, used without apparent problem for perhaps 10 years. It includes a colour specification…<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>withcolor 0.1black+0.5white;<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Mostly they come out like this, very light grey. This example is exported using colour-model cmyk, but most of the time using colour-model rgb it looks exactly the same, in my current project (only variables are colour map-fg, some map previews on or off and the colour model).<o:p></o:p></p><p class=MsoNormal><img width=185 height=186 style='width:1.9305in;height:1.9375in' id="Picture_x0020_1" src="cid:image002.jpg@01D78E2C.C8232290"><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>For some reason, in my current project, if I use colour-model rgb for a particular output variant, I get a much darker gridline, as below. Other variants with rgb, the colour of the gridline matches the first example.<o:p></o:p></p><p class=MsoNormal><img width=174 height=180 style='width:1.8125in;height:1.875in' id="Picture_x0020_2" src="cid:image005.png@01D78E2C.C8232290"> <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Any hints as to why the difference?<o:p></o:p></p><p class=MsoNormal>I might have expected this to occur with the new cmyk colour model, but it does not.<o:p></o:p></p><p class=MsoNormal>So far it has only happened with in a single specific case when using the rgb colour model. I’ll watch for more cases…<o:p></o:p></p><p class=MsoNormal>Bruce<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>