[R] change legend character size in image.plot

[dmeire]

I'm using the image.plot() function (fields package), but I want to enlarge
the characters of the legend (as they are too small to be read in a combined
figure), but there is no way I can find a command to do this. I can enlarge
the legend bar (with legend.witdh), axis character size (cex.axis)  or the
total legend size (legend.shrink), but not the character size of the legend
characters itself (and only that). Is it possible to do it in one or another
way?

Regards,
Dieter

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