fix ANSI trimpot

src/symbol/ansi/common/icons.coffee

@@ -18,7 +18,7 @@ class ResistorIcon extends Icon
   draw: (x, y) ->
     settings = @symbol.settings
     @symbol
-      .lineWidth @lineWidth
+      .lineWidth @lineWidth/2
       .center x, y # Set center to (x, y)
       .line -@d.w/2, 0, (-@d.w/2)*(5/6), -@d.h/2
       .line (-@d.w/2)*(5/6), -@d.h/2, (-@d.w/2)*(3/6), @d.h/2
@@ -30,7 +30,7 @@ class ResistorIcon extends Icon
     if @schematic.trimpot
       @symbol
         .line -@d.h, @d.h,  @d.h, -@d.h
-        .line @d.h - @d.d, -@d.h - @d.d,  @d.h + @d.d, -@d.h + @d.d
+        .arrow 0.7*@d.h, -0.7*@d.h, @d.h, -@d.h, 0.2*@d.h
     @symbol.center 0, 0 # Restore default center point
 
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