Plot Style Group Code

For the life of me, I can’t find the group code for changing the “Plot Style” in the layers.

At current we use STB for plotting and I want to write a code that if I find any layers with a plot style of “Normal”, it will change it to “0.18”

I have

(setq layer (tblnext "LAYER" T))[/font][/size]
[font=Calibri][size=3](while layer[/size][/font]
[font=Calibri][size=3](setq curlayer (cdr (assoc 2 layer)))[/size][/font]
[font=Calibri][size=3](if (getvar (car? (cdr? (assoc ?????? layer) “normal”)))[/size][/font]
[font=Calibri][size=3](command "-layer" "set" curlayer "pstyle" "0.18" "" "")[/size][/font]
[font=Calibri][size=3])[/size][/font]
[font=Calibri][size=3](setq layer (tblnext "LAYER"))[/size][/font]
[font=Calibri][size=3])[/size][/font]

Can you help here

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