Taylor Plot Diagram

Greeting to all,
I am constructing Taylor Diagram with the help of the following code:

library(openair)
L<-all$lightning
C<-all$CAPE
Parameters<-all$Group
df<-data.frame(L,C,Parameters)
TaylorDiagram(df, obs = "L", mod = "C", group ="Parameters",lwd = 5 , pch=20, pcex=2,cols =c("green","blue", "red"), add =TRUE, main="EC", annotate = "",rms.col="red", arrow.lwd=5,cor.col="black")

I want to make the axis text and values in bold. Kindly help me out hear. I have attached the sample data here.
"Lightning CAPE Group
0.003963188 81.00907099 CAPE
0.009161263 118.379904 CAPE
0.014969708 149.3016605 CAPE
0.028915615 223.3838308 CAPE
0.054243654 266.5059439 CAPE
0.071495038 257.858162 CAPE
0.065183462 270.9071891 CAPE
0.053391538 288.2317611 CAPE
0.037424615 203.7867615 CAPE
0.015145346 127.8273482 CAPE
0.004672222 74.85571815 CAPE
0.001706733 67.23691625 CAPE
0.003963188 2.590231565 TCWV
0.009161263 3.246575748 TCWV
0.014969708 4.052071528 TCWV
0.028915615 5.569341065 TCWV
0.054243654 7.254911898 TCWV
0.071495038 10.3169538 TCWV
0.065183462 13.63715799 TCWV
0.053391538 14.09278211 TCWV
0.037424615 9.390512014 TCWV
0.015145346 5.066770718 TCWV
0.004672222 3.24585459 TCWV
0.001706733 2.599506289 TCWV
0.003963188 60.48301157 RH
0.009161263 65.57353426 RH
0.014969708 59.43994907 RH"