how to set the background of labels in psmeca?

Feng Wanpeng <[email protected]>
Newsgroups gmane.comp.gis.gmt.user
Message-ID <[email protected]>
Dear All
 
Could anyone please give a help whether it's possible to set a background color for the labels in psmeca?
 
The scripts used has been posted below. Since there are many other layers being plotted together, a background color could show labels up clearer.  In this test, I hope to plot "EQTEST" with a specific  background. how to set the properties of the labels in psmeca??? 
 
 
#/bin/csh -f
echo 96.79 33.05 15.7 210 67 178 6.9 97.05 33.35 EQTEST>test.inp
psmeca test.inp -R95.2/98.40/31.89/34.5  -JM4i  -Sa0.5/8/0.06   -W0.01c/10/10/10 -X1i -Y1i -P -B2::NESW > ps_test_meca.ps
 
 By the way, the gmt version which I am using is v4.5.9 64bit.
 
I would appreciate it if there is any advice. 
 
Best,
WP
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